Home / 91,451.12-126,146.04-62,757.68

Finding the Fourth Proportional to 91,451.12, 126,146.04 and 62,757.68

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Solution

The fourth proportional to 91,451.12, 126,146.04 and 62,757.68 is: 86,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,451.12 : 126,146.04 = 62,757.68 : x
  2. Step 2: Convert to fraction form
    91,451.12/126,146.04 = 62,757.68/x
  3. Step 3: Cross multiply
    91,451.12x = 126,146.04 × 62,757.68
  4. Step 4: Simplify right side
    91,451.12x = 7,916,632,811.59
  5. Step 5: Solve for x
    x = 7,916,632,811.59/91,451.12
  6. Step 6: Final answer
    x = 86,566.82

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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.