Home / 91,966.14-137,879.28-47,564.61

Finding the Fourth Proportional to 91,966.14, 137,879.28 and 47,564.61

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Solution

The fourth proportional to 91,966.14, 137,879.28 and 47,564.61 is: 71,310.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,966.14 : 137,879.28 = 47,564.61 : x
  2. Step 2: Convert to fraction form
    91,966.14/137,879.28 = 47,564.61/x
  3. Step 3: Cross multiply
    91,966.14x = 137,879.28 × 47,564.61
  4. Step 4: Simplify right side
    91,966.14x = 6,558,174,180.28
  5. Step 5: Solve for x
    x = 6,558,174,180.28/91,966.14
  6. Step 6: Final answer
    x = 71,310.75

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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.