Home / 99,831.58-137,767.86-54,509.95

Finding the Fourth Proportional to 99,831.58, 137,767.86 and 54,509.95

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Solution

The fourth proportional to 99,831.58, 137,767.86 and 54,509.95 is: 75,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.58 : 137,767.86 = 54,509.95 : x
  2. Step 2: Convert to fraction form
    99,831.58/137,767.86 = 54,509.95/x
  3. Step 3: Cross multiply
    99,831.58x = 137,767.86 × 54,509.95
  4. Step 4: Simplify right side
    99,831.58x = 7,509,718,815.79
  5. Step 5: Solve for x
    x = 7,509,718,815.79/99,831.58
  6. Step 6: Final answer
    x = 75,223.88

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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.