Home / 91,829.92-126,711.12-53,589.28

Finding the Fourth Proportional to 91,829.92, 126,711.12 and 53,589.28

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Solution

The fourth proportional to 91,829.92, 126,711.12 and 53,589.28 is: 73,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,829.92 : 126,711.12 = 53,589.28 : x
  2. Step 2: Convert to fraction form
    91,829.92/126,711.12 = 53,589.28/x
  3. Step 3: Cross multiply
    91,829.92x = 126,711.12 × 53,589.28
  4. Step 4: Simplify right side
    91,829.92x = 6,790,357,688.79
  5. Step 5: Solve for x
    x = 6,790,357,688.79/91,829.92
  6. Step 6: Final answer
    x = 73,944.94

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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.