Home / 87,998.48-121,438.77-47,712.14

Finding the Fourth Proportional to 87,998.48, 121,438.77 and 47,712.14

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Solution

The fourth proportional to 87,998.48, 121,438.77 and 47,712.14 is: 65,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.48 : 121,438.77 = 47,712.14 : x
  2. Step 2: Convert to fraction form
    87,998.48/121,438.77 = 47,712.14/x
  3. Step 3: Cross multiply
    87,998.48x = 121,438.77 × 47,712.14
  4. Step 4: Simplify right side
    87,998.48x = 5,794,103,595.67
  5. Step 5: Solve for x
    x = 5,794,103,595.67/87,998.48
  6. Step 6: Final answer
    x = 65,843.22

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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.