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Finding the Fourth Proportional to 40,484, 60,757.36 and 28,091.04

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Solution

The fourth proportional to 40,484, 60,757.36 and 28,091.04 is: 42,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,484 : 60,757.36 = 28,091.04 : x
  2. Step 2: Convert to fraction form
    40,484/60,757.36 = 28,091.04/x
  3. Step 3: Cross multiply
    40,484x = 60,757.36 × 28,091.04
  4. Step 4: Simplify right side
    40,484x = 1,706,737,430.05
  5. Step 5: Solve for x
    x = 1,706,737,430.05/40,484
  6. Step 6: Final answer
    x = 42,158.32

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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.