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Finding the Fourth Proportional to 85,263.72, 117,662.37 and 47,026.80

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Solution

The fourth proportional to 85,263.72, 117,662.37 and 47,026.80 is: 64,896.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,263.72 : 117,662.37 = 47,026.80 : x
  2. Step 2: Convert to fraction form
    85,263.72/117,662.37 = 47,026.80/x
  3. Step 3: Cross multiply
    85,263.72x = 117,662.37 × 47,026.80
  4. Step 4: Simplify right side
    85,263.72x = 5,533,284,741.52
  5. Step 5: Solve for x
    x = 5,533,284,741.52/85,263.72
  6. Step 6: Final answer
    x = 64,896.12

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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.