Home / 91,422.72-126,162.45-51,136.02

Finding the Fourth Proportional to 91,422.72, 126,162.45 and 51,136.02

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Solution

The fourth proportional to 91,422.72, 126,162.45 and 51,136.02 is: 70,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,422.72 : 126,162.45 = 51,136.02 : x
  2. Step 2: Convert to fraction form
    91,422.72/126,162.45 = 51,136.02/x
  3. Step 3: Cross multiply
    91,422.72x = 126,162.45 × 51,136.02
  4. Step 4: Simplify right side
    91,422.72x = 6,451,445,566.45
  5. Step 5: Solve for x
    x = 6,451,445,566.45/91,422.72
  6. Step 6: Final answer
    x = 70,567.20

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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.