Home / 91,708.50-126,411.45-72,295.76

Finding the Fourth Proportional to 91,708.50, 126,411.45 and 72,295.76

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Solution

The fourth proportional to 91,708.50, 126,411.45 and 72,295.76 is: 99,652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,708.50 : 126,411.45 = 72,295.76 : x
  2. Step 2: Convert to fraction form
    91,708.50/126,411.45 = 72,295.76/x
  3. Step 3: Cross multiply
    91,708.50x = 126,411.45 × 72,295.76
  4. Step 4: Simplify right side
    91,708.50x = 9,139,011,590.97
  5. Step 5: Solve for x
    x = 9,139,011,590.97/91,708.50
  6. Step 6: Final answer
    x = 99,652.83

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1.5x scale

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.