Home / 74,770.46-112,122.86-27,990.52

Finding the Fourth Proportional to 74,770.46, 112,122.86 and 27,990.52

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Solution

The fourth proportional to 74,770.46, 112,122.86 and 27,990.52 is: 41,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,770.46 : 112,122.86 = 27,990.52 : x
  2. Step 2: Convert to fraction form
    74,770.46/112,122.86 = 27,990.52/x
  3. Step 3: Cross multiply
    74,770.46x = 112,122.86 × 27,990.52
  4. Step 4: Simplify right side
    74,770.46x = 3,138,377,155.29
  5. Step 5: Solve for x
    x = 3,138,377,155.29/74,770.46
  6. Step 6: Final answer
    x = 41,973.49

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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.