Home / 74,520.16-111,853.68-54,743.20

Finding the Fourth Proportional to 74,520.16, 111,853.68 and 54,743.20

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Solution

The fourth proportional to 74,520.16, 111,853.68 and 54,743.20 is: 82,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,520.16 : 111,853.68 = 54,743.20 : x
  2. Step 2: Convert to fraction form
    74,520.16/111,853.68 = 54,743.20/x
  3. Step 3: Cross multiply
    74,520.16x = 111,853.68 × 54,743.20
  4. Step 4: Simplify right side
    74,520.16x = 6,123,228,374.98
  5. Step 5: Solve for x
    x = 6,123,228,374.98/74,520.16
  6. Step 6: Final answer
    x = 82,168.75

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1.5x scale

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.