Home / 91,769.76-126,508.23-64,864.80

Finding the Fourth Proportional to 91,769.76, 126,508.23 and 64,864.80

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Solution

The fourth proportional to 91,769.76, 126,508.23 and 64,864.80 is: 89,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,769.76 : 126,508.23 = 64,864.80 : x
  2. Step 2: Convert to fraction form
    91,769.76/126,508.23 = 64,864.80/x
  3. Step 3: Cross multiply
    91,769.76x = 126,508.23 × 64,864.80
  4. Step 4: Simplify right side
    91,769.76x = 8,205,931,037.30
  5. Step 5: Solve for x
    x = 8,205,931,037.30/91,769.76
  6. Step 6: Final answer
    x = 89,418.68

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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.