Home / 91,555.29-137,354.36-28,372.11

Finding the Fourth Proportional to 91,555.29, 137,354.36 and 28,372.11

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Solution

The fourth proportional to 91,555.29, 137,354.36 and 28,372.11 is: 42,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,555.29 : 137,354.36 = 28,372.11 : x
  2. Step 2: Convert to fraction form
    91,555.29/137,354.36 = 28,372.11/x
  3. Step 3: Cross multiply
    91,555.29x = 137,354.36 × 28,372.11
  4. Step 4: Simplify right side
    91,555.29x = 3,897,032,353.96
  5. Step 5: Solve for x
    x = 3,897,032,353.96/91,555.29
  6. Step 6: Final answer
    x = 42,564.80

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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.