Home / 80,830.73-111,572.27-52,151.20

Finding the Fourth Proportional to 80,830.73, 111,572.27 and 52,151.20

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Solution

The fourth proportional to 80,830.73, 111,572.27 and 52,151.20 is: 71,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,830.73 : 111,572.27 = 52,151.20 : x
  2. Step 2: Convert to fraction form
    80,830.73/111,572.27 = 52,151.20/x
  3. Step 3: Cross multiply
    80,830.73x = 111,572.27 × 52,151.20
  4. Step 4: Simplify right side
    80,830.73x = 5,818,627,423.10
  5. Step 5: Solve for x
    x = 5,818,627,423.10/80,830.73
  6. Step 6: Final answer
    x = 71,985.34

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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.