Home / 91,470.88-137,232.24-47,129.92

Finding the Fourth Proportional to 91,470.88, 137,232.24 and 47,129.92

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Solution

The fourth proportional to 91,470.88, 137,232.24 and 47,129.92 is: 70,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,470.88 : 137,232.24 = 47,129.92 : x
  2. Step 2: Convert to fraction form
    91,470.88/137,232.24 = 47,129.92/x
  3. Step 3: Cross multiply
    91,470.88x = 137,232.24 × 47,129.92
  4. Step 4: Simplify right side
    91,470.88x = 6,467,744,492.62
  5. Step 5: Solve for x
    x = 6,467,744,492.62/91,470.88
  6. Step 6: Final answer
    x = 70,708.24

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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.