Home / 87,992.90-121,365.68-57,767.19

Finding the Fourth Proportional to 87,992.90, 121,365.68 and 57,767.19

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Solution

The fourth proportional to 87,992.90, 121,365.68 and 57,767.19 is: 79,676.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,992.90 : 121,365.68 = 57,767.19 : x
  2. Step 2: Convert to fraction form
    87,992.90/121,365.68 = 57,767.19/x
  3. Step 3: Cross multiply
    87,992.90x = 121,365.68 × 57,767.19
  4. Step 4: Simplify right side
    87,992.90x = 7,010,954,234.76
  5. Step 5: Solve for x
    x = 7,010,954,234.76/87,992.90
  6. Step 6: Final answer
    x = 79,676.36

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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.