Home / 90,831.31-136,207.25-45,824.98

Finding the Fourth Proportional to 90,831.31, 136,207.25 and 45,824.98

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Solution

The fourth proportional to 90,831.31, 136,207.25 and 45,824.98 is: 68,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,831.31 : 136,207.25 = 45,824.98 : x
  2. Step 2: Convert to fraction form
    90,831.31/136,207.25 = 45,824.98/x
  3. Step 3: Cross multiply
    90,831.31x = 136,207.25 × 45,824.98
  4. Step 4: Simplify right side
    90,831.31x = 6,241,694,052.02
  5. Step 5: Solve for x
    x = 6,241,694,052.02/90,831.31
  6. Step 6: Final answer
    x = 68,717.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.