Home / 91,937.90-137,782.28-47,595.80

Finding the Fourth Proportional to 91,937.90, 137,782.28 and 47,595.80

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Solution

The fourth proportional to 91,937.90, 137,782.28 and 47,595.80 is: 71,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,937.90 : 137,782.28 = 47,595.80 : x
  2. Step 2: Convert to fraction form
    91,937.90/137,782.28 = 47,595.80/x
  3. Step 3: Cross multiply
    91,937.90x = 137,782.28 × 47,595.80
  4. Step 4: Simplify right side
    91,937.90x = 6,557,857,842.42
  5. Step 5: Solve for x
    x = 6,557,857,842.42/91,937.90
  6. Step 6: Final answer
    x = 71,329.21

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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.