Home / 78,175.52-117,273.04-25,570.88

Finding the Fourth Proportional to 78,175.52, 117,273.04 and 25,570.88

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Solution

The fourth proportional to 78,175.52, 117,273.04 and 25,570.88 is: 38,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,175.52 : 117,273.04 = 25,570.88 : x
  2. Step 2: Convert to fraction form
    78,175.52/117,273.04 = 25,570.88/x
  3. Step 3: Cross multiply
    78,175.52x = 117,273.04 × 25,570.88
  4. Step 4: Simplify right side
    78,175.52x = 2,998,774,833.08
  5. Step 5: Solve for x
    x = 2,998,774,833.08/78,175.52
  6. Step 6: Final answer
    x = 38,359.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.