Home / 91,910.43-126,830.07-51,627.90

Finding the Fourth Proportional to 91,910.43, 126,830.07 and 51,627.90

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Solution

The fourth proportional to 91,910.43, 126,830.07 and 51,627.90 is: 71,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,910.43 : 126,830.07 = 51,627.90 : x
  2. Step 2: Convert to fraction form
    91,910.43/126,830.07 = 51,627.90/x
  3. Step 3: Cross multiply
    91,910.43x = 126,830.07 × 51,627.90
  4. Step 4: Simplify right side
    91,910.43x = 6,547,970,170.95
  5. Step 5: Solve for x
    x = 6,547,970,170.95/91,910.43
  6. Step 6: Final answer
    x = 71,242.95

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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.