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Finding the Fourth Proportional to 85,335.38, 127,930.77 and 35,384.30

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Solution

The fourth proportional to 85,335.38, 127,930.77 and 35,384.30 is: 53,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,335.38 : 127,930.77 = 35,384.30 : x
  2. Step 2: Convert to fraction form
    85,335.38/127,930.77 = 35,384.30/x
  3. Step 3: Cross multiply
    85,335.38x = 127,930.77 × 35,384.30
  4. Step 4: Simplify right side
    85,335.38x = 4,526,740,744.91
  5. Step 5: Solve for x
    x = 4,526,740,744.91/85,335.38
  6. Step 6: Final answer
    x = 53,046.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.