Home / 83,040.59-124,560.89-20,711.09

Finding the Fourth Proportional to 83,040.59, 124,560.89 and 20,711.09

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Solution

The fourth proportional to 83,040.59, 124,560.89 and 20,711.09 is: 31,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,040.59 : 124,560.89 = 20,711.09 : x
  2. Step 2: Convert to fraction form
    83,040.59/124,560.89 = 20,711.09/x
  3. Step 3: Cross multiply
    83,040.59x = 124,560.89 × 20,711.09
  4. Step 4: Simplify right side
    83,040.59x = 2,579,791,076.91
  5. Step 5: Solve for x
    x = 2,579,791,076.91/83,040.59
  6. Step 6: Final answer
    x = 31,066.63

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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.