Home / 91,581.80-126,379.14-51,294.92

Finding the Fourth Proportional to 91,581.80, 126,379.14 and 51,294.92

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Solution

The fourth proportional to 91,581.80, 126,379.14 and 51,294.92 is: 70,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,581.80 : 126,379.14 = 51,294.92 : x
  2. Step 2: Convert to fraction form
    91,581.80/126,379.14 = 51,294.92/x
  3. Step 3: Cross multiply
    91,581.80x = 126,379.14 × 51,294.92
  4. Step 4: Simplify right side
    91,581.80x = 6,482,607,875.97
  5. Step 5: Solve for x
    x = 6,482,607,875.97/91,581.80
  6. Step 6: Final answer
    x = 70,784.89

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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.