Home / 42,154.15-58,105.16-28,537.90

Finding the Fourth Proportional to 42,154.15, 58,105.16 and 28,537.90

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Solution

The fourth proportional to 42,154.15, 58,105.16 and 28,537.90 is: 39,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.15 : 58,105.16 = 28,537.90 : x
  2. Step 2: Convert to fraction form
    42,154.15/58,105.16 = 28,537.90/x
  3. Step 3: Cross multiply
    42,154.15x = 58,105.16 × 28,537.90
  4. Step 4: Simplify right side
    42,154.15x = 1,658,198,812.35
  5. Step 5: Solve for x
    x = 1,658,198,812.35/42,154.15
  6. Step 6: Final answer
    x = 39,336.55

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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.