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Finding the Fourth Proportional to 75,010.60, 112,515.90 and 39,932.20

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Solution

The fourth proportional to 75,010.60, 112,515.90 and 39,932.20 is: 59,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.60 : 112,515.90 = 39,932.20 : x
  2. Step 2: Convert to fraction form
    75,010.60/112,515.90 = 39,932.20/x
  3. Step 3: Cross multiply
    75,010.60x = 112,515.90 × 39,932.20
  4. Step 4: Simplify right side
    75,010.60x = 4,493,007,421.98
  5. Step 5: Solve for x
    x = 4,493,007,421.98/75,010.60
  6. Step 6: Final answer
    x = 59,898.30

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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.