Home / 52,138.10-71,946.96-29,478.20

Finding the Fourth Proportional to 52,138.10, 71,946.96 and 29,478.20

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Solution

The fourth proportional to 52,138.10, 71,946.96 and 29,478.20 is: 40,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,138.10 : 71,946.96 = 29,478.20 : x
  2. Step 2: Convert to fraction form
    52,138.10/71,946.96 = 29,478.20/x
  3. Step 3: Cross multiply
    52,138.10x = 71,946.96 × 29,478.20
  4. Step 4: Simplify right side
    52,138.10x = 2,120,866,876.27
  5. Step 5: Solve for x
    x = 2,120,866,876.27/52,138.10
  6. Step 6: Final answer
    x = 40,677.87

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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.