Home / 99,543.26-137,369.68-54,831.26

Finding the Fourth Proportional to 99,543.26, 137,369.68 and 54,831.26

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Solution

The fourth proportional to 99,543.26, 137,369.68 and 54,831.26 is: 75,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,543.26 : 137,369.68 = 54,831.26 : x
  2. Step 2: Convert to fraction form
    99,543.26/137,369.68 = 54,831.26/x
  3. Step 3: Cross multiply
    99,543.26x = 137,369.68 × 54,831.26
  4. Step 4: Simplify right side
    99,543.26x = 7,532,152,640.20
  5. Step 5: Solve for x
    x = 7,532,152,640.20/99,543.26
  6. Step 6: Final answer
    x = 75,667.13

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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.