Home / 87,809.47-121,176.56-47,522.85

Finding the Fourth Proportional to 87,809.47, 121,176.56 and 47,522.85

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Solution

The fourth proportional to 87,809.47, 121,176.56 and 47,522.85 is: 65,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.47 : 121,176.56 = 47,522.85 : x
  2. Step 2: Convert to fraction form
    87,809.47/121,176.56 = 47,522.85/x
  3. Step 3: Cross multiply
    87,809.47x = 121,176.56 × 47,522.85
  4. Step 4: Simplify right side
    87,809.47x = 5,758,655,563.09
  5. Step 5: Solve for x
    x = 5,758,655,563.09/87,809.47
  6. Step 6: Final answer
    x = 65,581.26

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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.