Home / 85,131.33-117,424.95-53,244.87

Finding the Fourth Proportional to 85,131.33, 117,424.95 and 53,244.87

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Solution

The fourth proportional to 85,131.33, 117,424.95 and 53,244.87 is: 73,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,131.33 : 117,424.95 = 53,244.87 : x
  2. Step 2: Convert to fraction form
    85,131.33/117,424.95 = 53,244.87/x
  3. Step 3: Cross multiply
    85,131.33x = 117,424.95 × 53,244.87
  4. Step 4: Simplify right side
    85,131.33x = 6,252,276,197.51
  5. Step 5: Solve for x
    x = 6,252,276,197.51/85,131.33
  6. Step 6: Final answer
    x = 73,442.72

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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.