Home / 99,650.28-137,516.34-54,328.14

Finding the Fourth Proportional to 99,650.28, 137,516.34 and 54,328.14

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Solution

The fourth proportional to 99,650.28, 137,516.34 and 54,328.14 is: 74,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,650.28 : 137,516.34 = 54,328.14 : x
  2. Step 2: Convert to fraction form
    99,650.28/137,516.34 = 54,328.14/x
  3. Step 3: Cross multiply
    99,650.28x = 137,516.34 × 54,328.14
  4. Step 4: Simplify right side
    99,650.28x = 7,471,006,971.81
  5. Step 5: Solve for x
    x = 7,471,006,971.81/99,650.28
  6. Step 6: Final answer
    x = 74,972.26

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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.