Home / 82,280.85-123,407.17-26,108.45

Finding the Fourth Proportional to 82,280.85, 123,407.17 and 26,108.45

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Solution

The fourth proportional to 82,280.85, 123,407.17 and 26,108.45 is: 39,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,280.85 : 123,407.17 = 26,108.45 : x
  2. Step 2: Convert to fraction form
    82,280.85/123,407.17 = 26,108.45/x
  3. Step 3: Cross multiply
    82,280.85x = 123,407.17 × 26,108.45
  4. Step 4: Simplify right side
    82,280.85x = 3,221,969,927.59
  5. Step 5: Solve for x
    x = 3,221,969,927.59/82,280.85
  6. Step 6: Final answer
    x = 39,158.20

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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.