Home / 74,291.19-111,432.69-54,321.15

Finding the Fourth Proportional to 74,291.19, 111,432.69 and 54,321.15

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Solution

The fourth proportional to 74,291.19, 111,432.69 and 54,321.15 is: 81,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,291.19 : 111,432.69 = 54,321.15 : x
  2. Step 2: Convert to fraction form
    74,291.19/111,432.69 = 54,321.15/x
  3. Step 3: Cross multiply
    74,291.19x = 111,432.69 × 54,321.15
  4. Step 4: Simplify right side
    74,291.19x = 6,053,151,868.39
  5. Step 5: Solve for x
    x = 6,053,151,868.39/74,291.19
  6. Step 6: Final answer
    x = 81,478.73

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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.