Home / 82,961.40-124,482.60-38,565.30

Finding the Fourth Proportional to 82,961.40, 124,482.60 and 38,565.30

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Solution

The fourth proportional to 82,961.40, 124,482.60 and 38,565.30 is: 57,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,961.40 : 124,482.60 = 38,565.30 : x
  2. Step 2: Convert to fraction form
    82,961.40/124,482.60 = 38,565.30/x
  3. Step 3: Cross multiply
    82,961.40x = 124,482.60 × 38,565.30
  4. Step 4: Simplify right side
    82,961.40x = 4,800,708,813.78
  5. Step 5: Solve for x
    x = 4,800,708,813.78/82,961.40
  6. Step 6: Final answer
    x = 57,866.78

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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.