Home / 81,297.06-121,920.21-48,008.22

Finding the Fourth Proportional to 81,297.06, 121,920.21 and 48,008.22

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Solution

The fourth proportional to 81,297.06, 121,920.21 and 48,008.22 is: 71,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,297.06 : 121,920.21 = 48,008.22 : x
  2. Step 2: Convert to fraction form
    81,297.06/121,920.21 = 48,008.22/x
  3. Step 3: Cross multiply
    81,297.06x = 121,920.21 × 48,008.22
  4. Step 4: Simplify right side
    81,297.06x = 5,853,172,264.13
  5. Step 5: Solve for x
    x = 5,853,172,264.13/81,297.06
  6. Step 6: Final answer
    x = 71,997.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.