Home / 57,121.92-78,770.40-44,032.68

Finding the Fourth Proportional to 57,121.92, 78,770.40 and 44,032.68

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Solution

The fourth proportional to 57,121.92, 78,770.40 and 44,032.68 is: 60,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.92 : 78,770.40 = 44,032.68 : x
  2. Step 2: Convert to fraction form
    57,121.92/78,770.40 = 44,032.68/x
  3. Step 3: Cross multiply
    57,121.92x = 78,770.40 × 44,032.68
  4. Step 4: Simplify right side
    57,121.92x = 3,468,471,816.67
  5. Step 5: Solve for x
    x = 3,468,471,816.67/57,121.92
  6. Step 6: Final answer
    x = 60,720.50

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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.