Home / 87,735.35-121,074.39-47,449.14

Finding the Fourth Proportional to 87,735.35, 121,074.39 and 47,449.14

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Solution

The fourth proportional to 87,735.35, 121,074.39 and 47,449.14 is: 65,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.35 : 121,074.39 = 47,449.14 : x
  2. Step 2: Convert to fraction form
    87,735.35/121,074.39 = 47,449.14/x
  3. Step 3: Cross multiply
    87,735.35x = 121,074.39 × 47,449.14
  4. Step 4: Simplify right side
    87,735.35x = 5,744,875,444.28
  5. Step 5: Solve for x
    x = 5,744,875,444.28/87,735.35
  6. Step 6: Final answer
    x = 65,479.60

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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.