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Finding the Fourth Proportional to 83,225.40, 124,916.40 and 43,810.80

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Solution

The fourth proportional to 83,225.40, 124,916.40 and 43,810.80 is: 65,757.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,225.40 : 124,916.40 = 43,810.80 : x
  2. Step 2: Convert to fraction form
    83,225.40/124,916.40 = 43,810.80/x
  3. Step 3: Cross multiply
    83,225.40x = 124,916.40 × 43,810.80
  4. Step 4: Simplify right side
    83,225.40x = 5,472,687,417.12
  5. Step 5: Solve for x
    x = 5,472,687,417.12/83,225.40
  6. Step 6: Final answer
    x = 65,757.42

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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.