Home / 91,919.68-126,909.96-60,144.88

Finding the Fourth Proportional to 91,919.68, 126,909.96 and 60,144.88

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Solution

The fourth proportional to 91,919.68, 126,909.96 and 60,144.88 is: 83,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,919.68 : 126,909.96 = 60,144.88 : x
  2. Step 2: Convert to fraction form
    91,919.68/126,909.96 = 60,144.88/x
  3. Step 3: Cross multiply
    91,919.68x = 126,909.96 × 60,144.88
  4. Step 4: Simplify right side
    91,919.68x = 7,632,984,315.00
  5. Step 5: Solve for x
    x = 7,632,984,315.00/91,919.68
  6. Step 6: Final answer
    x = 83,039.72

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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.