Home / 42,737.40-58,943.99-39,872.64

Finding the Fourth Proportional to 42,737.40, 58,943.99 and 39,872.64

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Solution

The fourth proportional to 42,737.40, 58,943.99 and 39,872.64 is: 54,992.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,737.40 : 58,943.99 = 39,872.64 : x
  2. Step 2: Convert to fraction form
    42,737.40/58,943.99 = 39,872.64/x
  3. Step 3: Cross multiply
    42,737.40x = 58,943.99 × 39,872.64
  4. Step 4: Simplify right side
    42,737.40x = 2,350,252,294.07
  5. Step 5: Solve for x
    x = 2,350,252,294.07/42,737.40
  6. Step 6: Final answer
    x = 54,992.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.