Home / 91,748.60-126,618.08-51,475.12

Finding the Fourth Proportional to 91,748.60, 126,618.08 and 51,475.12

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Solution

The fourth proportional to 91,748.60, 126,618.08 and 51,475.12 is: 71,038.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,748.60 : 126,618.08 = 51,475.12 : x
  2. Step 2: Convert to fraction form
    91,748.60/126,618.08 = 51,475.12/x
  3. Step 3: Cross multiply
    91,748.60x = 126,618.08 × 51,475.12
  4. Step 4: Simplify right side
    91,748.60x = 6,517,680,862.17
  5. Step 5: Solve for x
    x = 6,517,680,862.17/91,748.60
  6. Step 6: Final answer
    x = 71,038.48

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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.