Home / 74,318.93-111,478.33-42,708.83

Finding the Fourth Proportional to 74,318.93, 111,478.33 and 42,708.83

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Solution

The fourth proportional to 74,318.93, 111,478.33 and 42,708.83 is: 64,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,318.93 : 111,478.33 = 42,708.83 : x
  2. Step 2: Convert to fraction form
    74,318.93/111,478.33 = 42,708.83/x
  3. Step 3: Cross multiply
    74,318.93x = 111,478.33 × 42,708.83
  4. Step 4: Simplify right side
    74,318.93x = 4,761,108,380.49
  5. Step 5: Solve for x
    x = 4,761,108,380.49/74,318.93
  6. Step 6: Final answer
    x = 64,063.20

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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.