Home / 91,921.92-126,847.48-51,637.36

Finding the Fourth Proportional to 91,921.92, 126,847.48 and 51,637.36

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Solution

The fourth proportional to 91,921.92, 126,847.48 and 51,637.36 is: 71,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,921.92 : 126,847.48 = 51,637.36 : x
  2. Step 2: Convert to fraction form
    91,921.92/126,847.48 = 51,637.36/x
  3. Step 3: Cross multiply
    91,921.92x = 126,847.48 × 51,637.36
  4. Step 4: Simplify right side
    91,921.92x = 6,550,068,989.85
  5. Step 5: Solve for x
    x = 6,550,068,989.85/91,921.92
  6. Step 6: Final answer
    x = 71,256.88

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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.