Home / 87,734.79-121,073.65-47,448.59

Finding the Fourth Proportional to 87,734.79, 121,073.65 and 47,448.59

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Solution

The fourth proportional to 87,734.79, 121,073.65 and 47,448.59 is: 65,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,734.79 : 121,073.65 = 47,448.59 : x
  2. Step 2: Convert to fraction form
    87,734.79/121,073.65 = 47,448.59/x
  3. Step 3: Cross multiply
    87,734.79x = 121,073.65 × 47,448.59
  4. Step 4: Simplify right side
    87,734.79x = 5,744,773,978.65
  5. Step 5: Solve for x
    x = 5,744,773,978.65/87,734.79
  6. Step 6: Final answer
    x = 65,478.86

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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.