Home / 82,125.50-123,146.33-40,007.52

Finding the Fourth Proportional to 82,125.50, 123,146.33 and 40,007.52

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Solution

The fourth proportional to 82,125.50, 123,146.33 and 40,007.52 is: 59,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,125.50 : 123,146.33 = 40,007.52 : x
  2. Step 2: Convert to fraction form
    82,125.50/123,146.33 = 40,007.52/x
  3. Step 3: Cross multiply
    82,125.50x = 123,146.33 × 40,007.52
  4. Step 4: Simplify right side
    82,125.50x = 4,926,779,060.36
  5. Step 5: Solve for x
    x = 4,926,779,060.36/82,125.50
  6. Step 6: Final answer
    x = 59,990.86

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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.