Home / 88,237.80-121,831.56-54,291.78

Finding the Fourth Proportional to 88,237.80, 121,831.56 and 54,291.78

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Solution

The fourth proportional to 88,237.80, 121,831.56 and 54,291.78 is: 74,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,237.80 : 121,831.56 = 54,291.78 : x
  2. Step 2: Convert to fraction form
    88,237.80/121,831.56 = 54,291.78/x
  3. Step 3: Cross multiply
    88,237.80x = 121,831.56 × 54,291.78
  4. Step 4: Simplify right side
    88,237.80x = 6,614,452,252.58
  5. Step 5: Solve for x
    x = 6,614,452,252.58/88,237.80
  6. Step 6: Final answer
    x = 74,961.66

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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.