Home / 81,331.68-112,237.20-45,521.52

Finding the Fourth Proportional to 81,331.68, 112,237.20 and 45,521.52

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Solution

The fourth proportional to 81,331.68, 112,237.20 and 45,521.52 is: 62,819.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.68 : 112,237.20 = 45,521.52 : x
  2. Step 2: Convert to fraction form
    81,331.68/112,237.20 = 45,521.52/x
  3. Step 3: Cross multiply
    81,331.68x = 112,237.20 × 45,521.52
  4. Step 4: Simplify right side
    81,331.68x = 5,109,207,944.54
  5. Step 5: Solve for x
    x = 5,109,207,944.54/81,331.68
  6. Step 6: Final answer
    x = 62,819.41

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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.