Home / 71,589.36-98,794.56-39,761.20

Finding the Fourth Proportional to 71,589.36, 98,794.56 and 39,761.20

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Solution

The fourth proportional to 71,589.36, 98,794.56 and 39,761.20 is: 54,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,589.36 : 98,794.56 = 39,761.20 : x
  2. Step 2: Convert to fraction form
    71,589.36/98,794.56 = 39,761.20/x
  3. Step 3: Cross multiply
    71,589.36x = 98,794.56 × 39,761.20
  4. Step 4: Simplify right side
    71,589.36x = 3,928,190,259.07
  5. Step 5: Solve for x
    x = 3,928,190,259.07/71,589.36
  6. Step 6: Final answer
    x = 54,871.15

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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.