Home / 91,831.31-126,718.45-51,535.83

Finding the Fourth Proportional to 91,831.31, 126,718.45 and 51,535.83

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Solution

The fourth proportional to 91,831.31, 126,718.45 and 51,535.83 is: 71,114.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.31 : 126,718.45 = 51,535.83 : x
  2. Step 2: Convert to fraction form
    91,831.31/126,718.45 = 51,535.83/x
  3. Step 3: Cross multiply
    91,831.31x = 126,718.45 × 51,535.83
  4. Step 4: Simplify right side
    91,831.31x = 6,530,540,368.22
  5. Step 5: Solve for x
    x = 6,530,540,368.22/91,831.31
  6. Step 6: Final answer
    x = 71,114.53

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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.