Home / 82,140.25-123,222.50-25,967.61

Finding the Fourth Proportional to 82,140.25, 123,222.50 and 25,967.61

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Solution

The fourth proportional to 82,140.25, 123,222.50 and 25,967.61 is: 38,955.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,140.25 : 123,222.50 = 25,967.61 : x
  2. Step 2: Convert to fraction form
    82,140.25/123,222.50 = 25,967.61/x
  3. Step 3: Cross multiply
    82,140.25x = 123,222.50 × 25,967.61
  4. Step 4: Simplify right side
    82,140.25x = 3,199,793,077.27
  5. Step 5: Solve for x
    x = 3,199,793,077.27/82,140.25
  6. Step 6: Final answer
    x = 38,955.24

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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.