Home / 91,770.32-126,508.97-64,865.36

Finding the Fourth Proportional to 91,770.32, 126,508.97 and 64,865.36

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Solution

The fourth proportional to 91,770.32, 126,508.97 and 64,865.36 is: 89,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,770.32 : 126,508.97 = 64,865.36 : x
  2. Step 2: Convert to fraction form
    91,770.32/126,508.97 = 64,865.36/x
  3. Step 3: Cross multiply
    91,770.32x = 126,508.97 × 64,865.36
  4. Step 4: Simplify right side
    91,770.32x = 8,206,048,925.41
  5. Step 5: Solve for x
    x = 8,206,048,925.41/91,770.32
  6. Step 6: Final answer
    x = 89,419.43

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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.