Home / 91,922.08-126,849.12-56,171.92

Finding the Fourth Proportional to 91,922.08, 126,849.12 and 56,171.92

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Solution

The fourth proportional to 91,922.08, 126,849.12 and 56,171.92 is: 77,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,922.08 : 126,849.12 = 56,171.92 : x
  2. Step 2: Convert to fraction form
    91,922.08/126,849.12 = 56,171.92/x
  3. Step 3: Cross multiply
    91,922.08x = 126,849.12 × 56,171.92
  4. Step 4: Simplify right side
    91,922.08x = 7,125,358,620.71
  5. Step 5: Solve for x
    x = 7,125,358,620.71/91,922.08
  6. Step 6: Final answer
    x = 77,515.20

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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.