Home / 91,770.14-137,433.68-52,207.31

Finding the Fourth Proportional to 91,770.14, 137,433.68 and 52,207.31

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Solution

The fourth proportional to 91,770.14, 137,433.68 and 52,207.31 is: 78,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,770.14 : 137,433.68 = 52,207.31 : x
  2. Step 2: Convert to fraction form
    91,770.14/137,433.68 = 52,207.31/x
  3. Step 3: Cross multiply
    91,770.14x = 137,433.68 × 52,207.31
  4. Step 4: Simplify right side
    91,770.14x = 7,175,042,475.16
  5. Step 5: Solve for x
    x = 7,175,042,475.16/91,770.14
  6. Step 6: Final answer
    x = 78,184.94

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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.