Home / 87,873.62-121,265.71-47,587.45

Finding the Fourth Proportional to 87,873.62, 121,265.71 and 47,587.45

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Solution

The fourth proportional to 87,873.62, 121,265.71 and 47,587.45 is: 65,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,873.62 : 121,265.71 = 47,587.45 : x
  2. Step 2: Convert to fraction form
    87,873.62/121,265.71 = 47,587.45/x
  3. Step 3: Cross multiply
    87,873.62x = 121,265.71 × 47,587.45
  4. Step 4: Simplify right side
    87,873.62x = 5,770,725,911.34
  5. Step 5: Solve for x
    x = 5,770,725,911.34/87,873.62
  6. Step 6: Final answer
    x = 65,670.74

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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.