Home / 77,208.28-115,791.56-27,281.76

Finding the Fourth Proportional to 77,208.28, 115,791.56 and 27,281.76

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Solution

The fourth proportional to 77,208.28, 115,791.56 and 27,281.76 is: 40,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,208.28 : 115,791.56 = 27,281.76 : x
  2. Step 2: Convert to fraction form
    77,208.28/115,791.56 = 27,281.76/x
  3. Step 3: Cross multiply
    77,208.28x = 115,791.56 × 27,281.76
  4. Step 4: Simplify right side
    77,208.28x = 3,158,997,549.95
  5. Step 5: Solve for x
    x = 3,158,997,549.95/77,208.28
  6. Step 6: Final answer
    x = 40,915.27

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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.