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Finding the Fourth Proportional to 85,855.92, 118,481.10 and 48,130.17

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Solution

The fourth proportional to 85,855.92, 118,481.10 and 48,130.17 is: 66,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,855.92 : 118,481.10 = 48,130.17 : x
  2. Step 2: Convert to fraction form
    85,855.92/118,481.10 = 48,130.17/x
  3. Step 3: Cross multiply
    85,855.92x = 118,481.10 × 48,130.17
  4. Step 4: Simplify right side
    85,855.92x = 5,702,516,265.78
  5. Step 5: Solve for x
    x = 5,702,516,265.78/85,855.92
  6. Step 6: Final answer
    x = 66,419.60

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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.