Home / 40,221.90-60,381.45-39,930.30

Finding the Fourth Proportional to 40,221.90, 60,381.45 and 39,930.30

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Solution

The fourth proportional to 40,221.90, 60,381.45 and 39,930.30 is: 59,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,221.90 : 60,381.45 = 39,930.30 : x
  2. Step 2: Convert to fraction form
    40,221.90/60,381.45 = 39,930.30/x
  3. Step 3: Cross multiply
    40,221.90x = 60,381.45 × 39,930.30
  4. Step 4: Simplify right side
    40,221.90x = 2,411,049,412.94
  5. Step 5: Solve for x
    x = 2,411,049,412.94/40,221.90
  6. Step 6: Final answer
    x = 59,943.70

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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.