Home / 82,947.40-124,421.10-49,769.80

Finding the Fourth Proportional to 82,947.40, 124,421.10 and 49,769.80

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Solution

The fourth proportional to 82,947.40, 124,421.10 and 49,769.80 is: 74,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,947.40 : 124,421.10 = 49,769.80 : x
  2. Step 2: Convert to fraction form
    82,947.40/124,421.10 = 49,769.80/x
  3. Step 3: Cross multiply
    82,947.40x = 124,421.10 × 49,769.80
  4. Step 4: Simplify right side
    82,947.40x = 6,192,413,262.78
  5. Step 5: Solve for x
    x = 6,192,413,262.78/82,947.40
  6. Step 6: Final answer
    x = 74,654.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.