Home / 83,478.54-125,272.08-36,139.80

Finding the Fourth Proportional to 83,478.54, 125,272.08 and 36,139.80

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Solution

The fourth proportional to 83,478.54, 125,272.08 and 36,139.80 is: 54,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,478.54 : 125,272.08 = 36,139.80 : x
  2. Step 2: Convert to fraction form
    83,478.54/125,272.08 = 36,139.80/x
  3. Step 3: Cross multiply
    83,478.54x = 125,272.08 × 36,139.80
  4. Step 4: Simplify right side
    83,478.54x = 4,527,307,916.78
  5. Step 5: Solve for x
    x = 4,527,307,916.78/83,478.54
  6. Step 6: Final answer
    x = 54,233.19

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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.