Home / 85,218.17-117,577.46-55,004.77

Finding the Fourth Proportional to 85,218.17, 117,577.46 and 55,004.77

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Solution

The fourth proportional to 85,218.17, 117,577.46 and 55,004.77 is: 75,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.17 : 117,577.46 = 55,004.77 : x
  2. Step 2: Convert to fraction form
    85,218.17/117,577.46 = 55,004.77/x
  3. Step 3: Cross multiply
    85,218.17x = 117,577.46 × 55,004.77
  4. Step 4: Simplify right side
    85,218.17x = 6,467,320,281.57
  5. Step 5: Solve for x
    x = 6,467,320,281.57/85,218.17
  6. Step 6: Final answer
    x = 75,891.33

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.