Home / 87,712.58-121,040.48-49,473.12

Finding the Fourth Proportional to 87,712.58, 121,040.48 and 49,473.12

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Solution

The fourth proportional to 87,712.58, 121,040.48 and 49,473.12 is: 68,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,712.58 : 121,040.48 = 49,473.12 : x
  2. Step 2: Convert to fraction form
    87,712.58/121,040.48 = 49,473.12/x
  3. Step 3: Cross multiply
    87,712.58x = 121,040.48 × 49,473.12
  4. Step 4: Simplify right side
    87,712.58x = 5,988,250,191.90
  5. Step 5: Solve for x
    x = 5,988,250,191.90/87,712.58
  6. Step 6: Final answer
    x = 68,271.28

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1.5x scale

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.