Home / 91,831.34-126,717.50-51,549.53

Finding the Fourth Proportional to 91,831.34, 126,717.50 and 51,549.53

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Solution

The fourth proportional to 91,831.34, 126,717.50 and 51,549.53 is: 71,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.34 : 126,717.50 = 51,549.53 : x
  2. Step 2: Convert to fraction form
    91,831.34/126,717.50 = 51,549.53/x
  3. Step 3: Cross multiply
    91,831.34x = 126,717.50 × 51,549.53
  4. Step 4: Simplify right side
    91,831.34x = 6,532,227,567.78
  5. Step 5: Solve for x
    x = 6,532,227,567.78/91,831.34
  6. Step 6: Final answer
    x = 71,132.88

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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.