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Finding the Fourth Proportional to 84,763.88, 127,115.22 and 25,581.32

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Solution

The fourth proportional to 84,763.88, 127,115.22 and 25,581.32 is: 38,362.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,763.88 : 127,115.22 = 25,581.32 : x
  2. Step 2: Convert to fraction form
    84,763.88/127,115.22 = 25,581.32/x
  3. Step 3: Cross multiply
    84,763.88x = 127,115.22 × 25,581.32
  4. Step 4: Simplify right side
    84,763.88x = 3,251,775,119.69
  5. Step 5: Solve for x
    x = 3,251,775,119.69/84,763.88
  6. Step 6: Final answer
    x = 38,362.75

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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.