Home / 91,755.47-137,646.04-28,580.18

Finding the Fourth Proportional to 91,755.47, 137,646.04 and 28,580.18

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Solution

The fourth proportional to 91,755.47, 137,646.04 and 28,580.18 is: 42,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,755.47 : 137,646.04 = 28,580.18 : x
  2. Step 2: Convert to fraction form
    91,755.47/137,646.04 = 28,580.18/x
  3. Step 3: Cross multiply
    91,755.47x = 137,646.04 × 28,580.18
  4. Step 4: Simplify right side
    91,755.47x = 3,933,947,768.36
  5. Step 5: Solve for x
    x = 3,933,947,768.36/91,755.47
  6. Step 6: Final answer
    x = 42,874.26

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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.