Home / 71,507.28-98,680.04-39,676.40

Finding the Fourth Proportional to 71,507.28, 98,680.04 and 39,676.40

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Solution

The fourth proportional to 71,507.28, 98,680.04 and 39,676.40 is: 54,753.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,507.28 : 98,680.04 = 39,676.40 : x
  2. Step 2: Convert to fraction form
    71,507.28/98,680.04 = 39,676.40/x
  3. Step 3: Cross multiply
    71,507.28x = 98,680.04 × 39,676.40
  4. Step 4: Simplify right side
    71,507.28x = 3,915,268,739.06
  5. Step 5: Solve for x
    x = 3,915,268,739.06/71,507.28
  6. Step 6: Final answer
    x = 54,753.43

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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.