Home / 87,750.82-121,085.72-49,508.14

Finding the Fourth Proportional to 87,750.82, 121,085.72 and 49,508.14

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Solution

The fourth proportional to 87,750.82, 121,085.72 and 49,508.14 is: 68,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,750.82 : 121,085.72 = 49,508.14 : x
  2. Step 2: Convert to fraction form
    87,750.82/121,085.72 = 49,508.14/x
  3. Step 3: Cross multiply
    87,750.82x = 121,085.72 × 49,508.14
  4. Step 4: Simplify right side
    87,750.82x = 5,994,728,508.51
  5. Step 5: Solve for x
    x = 5,994,728,508.51/87,750.82
  6. Step 6: Final answer
    x = 68,315.36

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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.