Home / 91,334.52-125,807.16-64,429.72

Finding the Fourth Proportional to 91,334.52, 125,807.16 and 64,429.72

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Solution

The fourth proportional to 91,334.52, 125,807.16 and 64,429.72 is: 88,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,334.52 : 125,807.16 = 64,429.72 : x
  2. Step 2: Convert to fraction form
    91,334.52/125,807.16 = 64,429.72/x
  3. Step 3: Cross multiply
    91,334.52x = 125,807.16 × 64,429.72
  4. Step 4: Simplify right side
    91,334.52x = 8,105,720,092.80
  5. Step 5: Solve for x
    x = 8,105,720,092.80/91,334.52
  6. Step 6: Final answer
    x = 88,747.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.