Home / 71,388.38-98,515.92-42,709.25

Finding the Fourth Proportional to 71,388.38, 98,515.92 and 42,709.25

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Solution

The fourth proportional to 71,388.38, 98,515.92 and 42,709.25 is: 58,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,388.38 : 98,515.92 = 42,709.25 : x
  2. Step 2: Convert to fraction form
    71,388.38/98,515.92 = 42,709.25/x
  3. Step 3: Cross multiply
    71,388.38x = 98,515.92 × 42,709.25
  4. Step 4: Simplify right side
    71,388.38x = 4,207,540,563.68
  5. Step 5: Solve for x
    x = 4,207,540,563.68/71,388.38
  6. Step 6: Final answer
    x = 58,938.74

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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.