Home / 87,740.29-121,081.24-47,454.10

Finding the Fourth Proportional to 87,740.29, 121,081.24 and 47,454.10

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Solution

The fourth proportional to 87,740.29, 121,081.24 and 47,454.10 is: 65,486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,740.29 : 121,081.24 = 47,454.10 : x
  2. Step 2: Convert to fraction form
    87,740.29/121,081.24 = 47,454.10/x
  3. Step 3: Cross multiply
    87,740.29x = 121,081.24 × 47,454.10
  4. Step 4: Simplify right side
    87,740.29x = 5,745,801,271.08
  5. Step 5: Solve for x
    x = 5,745,801,271.08/87,740.29
  6. Step 6: Final answer
    x = 65,486.46

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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.