Home / 78,559.17-117,857.21-25,968.66

Finding the Fourth Proportional to 78,559.17, 117,857.21 and 25,968.66

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Solution

The fourth proportional to 78,559.17, 117,857.21 and 25,968.66 is: 38,959.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,559.17 : 117,857.21 = 25,968.66 : x
  2. Step 2: Convert to fraction form
    78,559.17/117,857.21 = 25,968.66/x
  3. Step 3: Cross multiply
    78,559.17x = 117,857.21 × 25,968.66
  4. Step 4: Simplify right side
    78,559.17x = 3,060,593,685.20
  5. Step 5: Solve for x
    x = 3,060,593,685.20/78,559.17
  6. Step 6: Final answer
    x = 38,959.09

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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.