Home / 99,369.19-137,125.55-54,047.11

Finding the Fourth Proportional to 99,369.19, 137,125.55 and 54,047.11

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Solution

The fourth proportional to 99,369.19, 137,125.55 and 54,047.11 is: 74,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,369.19 : 137,125.55 = 54,047.11 : x
  2. Step 2: Convert to fraction form
    99,369.19/137,125.55 = 54,047.11/x
  3. Step 3: Cross multiply
    99,369.19x = 137,125.55 × 54,047.11
  4. Step 4: Simplify right side
    99,369.19x = 7,411,239,546.89
  5. Step 5: Solve for x
    x = 7,411,239,546.89/99,369.19
  6. Step 6: Final answer
    x = 74,582.87

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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.