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Finding the Fourth Proportional to 40,691.20, 60,942.03 and 39,570.12

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Solution

The fourth proportional to 40,691.20, 60,942.03 and 39,570.12 is: 59,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,691.20 : 60,942.03 = 39,570.12 : x
  2. Step 2: Convert to fraction form
    40,691.20/60,942.03 = 39,570.12/x
  3. Step 3: Cross multiply
    40,691.20x = 60,942.03 × 39,570.12
  4. Step 4: Simplify right side
    40,691.20x = 2,411,483,440.14
  5. Step 5: Solve for x
    x = 2,411,483,440.14/40,691.20
  6. Step 6: Final answer
    x = 59,263.02

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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.