Home / 82,759.40-124,139.10-49,581.80

Finding the Fourth Proportional to 82,759.40, 124,139.10 and 49,581.80

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Solution

The fourth proportional to 82,759.40, 124,139.10 and 49,581.80 is: 74,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,759.40 : 124,139.10 = 49,581.80 : x
  2. Step 2: Convert to fraction form
    82,759.40/124,139.10 = 49,581.80/x
  3. Step 3: Cross multiply
    82,759.40x = 124,139.10 × 49,581.80
  4. Step 4: Simplify right side
    82,759.40x = 6,155,040,028.38
  5. Step 5: Solve for x
    x = 6,155,040,028.38/82,759.40
  6. Step 6: Final answer
    x = 74,372.70

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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.