Home / 71,507.47-98,680.33-39,676.60

Finding the Fourth Proportional to 71,507.47, 98,680.33 and 39,676.60

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Solution

The fourth proportional to 71,507.47, 98,680.33 and 39,676.60 is: 54,753.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,507.47 : 98,680.33 = 39,676.60 : x
  2. Step 2: Convert to fraction form
    71,507.47/98,680.33 = 39,676.60/x
  3. Step 3: Cross multiply
    71,507.47x = 98,680.33 × 39,676.60
  4. Step 4: Simplify right side
    71,507.47x = 3,915,299,289.49
  5. Step 5: Solve for x
    x = 3,915,299,289.49/71,507.47
  6. Step 6: Final answer
    x = 54,753.71

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1.5x scale

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.