Home / 87,815.34-121,184.28-47,528.28

Finding the Fourth Proportional to 87,815.34, 121,184.28 and 47,528.28

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Solution

The fourth proportional to 87,815.34, 121,184.28 and 47,528.28 is: 65,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,815.34 : 121,184.28 = 47,528.28 : x
  2. Step 2: Convert to fraction form
    87,815.34/121,184.28 = 47,528.28/x
  3. Step 3: Cross multiply
    87,815.34x = 121,184.28 × 47,528.28
  4. Step 4: Simplify right side
    87,815.34x = 5,759,680,391.44
  5. Step 5: Solve for x
    x = 5,759,680,391.44/87,815.34
  6. Step 6: Final answer
    x = 65,588.55

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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.