Home / 54,840.28-75,679.95-29,689.78

Finding the Fourth Proportional to 54,840.28, 75,679.95 and 29,689.78

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Solution

The fourth proportional to 54,840.28, 75,679.95 and 29,689.78 is: 40,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,840.28 : 75,679.95 = 29,689.78 : x
  2. Step 2: Convert to fraction form
    54,840.28/75,679.95 = 29,689.78/x
  3. Step 3: Cross multiply
    54,840.28x = 75,679.95 × 29,689.78
  4. Step 4: Simplify right side
    54,840.28x = 2,246,921,065.91
  5. Step 5: Solve for x
    x = 2,246,921,065.91/54,840.28
  6. Step 6: Final answer
    x = 40,972.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.