Home / 87,767.40-121,118.52-47,481.06

Finding the Fourth Proportional to 87,767.40, 121,118.52 and 47,481.06

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Solution

The fourth proportional to 87,767.40, 121,118.52 and 47,481.06 is: 65,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,767.40 : 121,118.52 = 47,481.06 : x
  2. Step 2: Convert to fraction form
    87,767.40/121,118.52 = 47,481.06/x
  3. Step 3: Cross multiply
    87,767.40x = 121,118.52 × 47,481.06
  4. Step 4: Simplify right side
    87,767.40x = 5,750,835,715.23
  5. Step 5: Solve for x
    x = 5,750,835,715.23/87,767.40
  6. Step 6: Final answer
    x = 65,523.60

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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.