Home / 91,596.75-126,340.38-64,430.46

Finding the Fourth Proportional to 91,596.75, 126,340.38 and 64,430.46

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Solution

The fourth proportional to 91,596.75, 126,340.38 and 64,430.46 is: 88,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,596.75 : 126,340.38 = 64,430.46 : x
  2. Step 2: Convert to fraction form
    91,596.75/126,340.38 = 64,430.46/x
  3. Step 3: Cross multiply
    91,596.75x = 126,340.38 × 64,430.46
  4. Step 4: Simplify right side
    91,596.75x = 8,140,168,799.97
  5. Step 5: Solve for x
    x = 8,140,168,799.97/91,596.75
  6. Step 6: Final answer
    x = 88,869.62

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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.