Home / 99,407.55-137,183.02-54,085.88

Finding the Fourth Proportional to 99,407.55, 137,183.02 and 54,085.88

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Solution

The fourth proportional to 99,407.55, 137,183.02 and 54,085.88 is: 74,638.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,407.55 : 137,183.02 = 54,085.88 : x
  2. Step 2: Convert to fraction form
    99,407.55/137,183.02 = 54,085.88/x
  3. Step 3: Cross multiply
    99,407.55x = 137,183.02 × 54,085.88
  4. Step 4: Simplify right side
    99,407.55x = 7,419,663,964.98
  5. Step 5: Solve for x
    x = 7,419,663,964.98/99,407.55
  6. Step 6: Final answer
    x = 74,638.84

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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.