Home / 91,677.25-137,537.40-28,494.13

Finding the Fourth Proportional to 91,677.25, 137,537.40 and 28,494.13

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Solution

The fourth proportional to 91,677.25, 137,537.40 and 28,494.13 is: 42,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,677.25 : 137,537.40 = 28,494.13 : x
  2. Step 2: Convert to fraction form
    91,677.25/137,537.40 = 28,494.13/x
  3. Step 3: Cross multiply
    91,677.25x = 137,537.40 × 28,494.13
  4. Step 4: Simplify right side
    91,677.25x = 3,919,008,555.46
  5. Step 5: Solve for x
    x = 3,919,008,555.46/91,677.25
  6. Step 6: Final answer
    x = 42,747.89

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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.