Home / 71,107.07-98,124.62-39,275.28

Finding the Fourth Proportional to 71,107.07, 98,124.62 and 39,275.28

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Solution

The fourth proportional to 71,107.07, 98,124.62 and 39,275.28 is: 54,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,107.07 : 98,124.62 = 39,275.28 : x
  2. Step 2: Convert to fraction form
    71,107.07/98,124.62 = 39,275.28/x
  3. Step 3: Cross multiply
    71,107.07x = 98,124.62 × 39,275.28
  4. Step 4: Simplify right side
    71,107.07x = 3,853,871,729.02
  5. Step 5: Solve for x
    x = 3,853,871,729.02/71,107.07
  6. Step 6: Final answer
    x = 54,198.15

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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.