Home / 86,999.15-120,067.17-48,758.51

Finding the Fourth Proportional to 86,999.15, 120,067.17 and 48,758.51

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Solution

The fourth proportional to 86,999.15, 120,067.17 and 48,758.51 is: 67,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,999.15 : 120,067.17 = 48,758.51 : x
  2. Step 2: Convert to fraction form
    86,999.15/120,067.17 = 48,758.51/x
  3. Step 3: Cross multiply
    86,999.15x = 120,067.17 × 48,758.51
  4. Step 4: Simplify right side
    86,999.15x = 5,854,296,309.12
  5. Step 5: Solve for x
    x = 5,854,296,309.12/86,999.15
  6. Step 6: Final answer
    x = 67,291.42

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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.