Home / 91,663.36-126,258.82-64,759.16

Finding the Fourth Proportional to 91,663.36, 126,258.82 and 64,759.16

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Solution

The fourth proportional to 91,663.36, 126,258.82 and 64,759.16 is: 89,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,663.36 : 126,258.82 = 64,759.16 : x
  2. Step 2: Convert to fraction form
    91,663.36/126,258.82 = 64,759.16/x
  3. Step 3: Cross multiply
    91,663.36x = 126,258.82 × 64,759.16
  4. Step 4: Simplify right side
    91,663.36x = 8,176,414,170.70
  5. Step 5: Solve for x
    x = 8,176,414,170.70/91,663.36
  6. Step 6: Final answer
    x = 89,200.47

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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.