Home / 81,521.90-122,318.02-44,108.32

Finding the Fourth Proportional to 81,521.90, 122,318.02 and 44,108.32

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Solution

The fourth proportional to 81,521.90, 122,318.02 and 44,108.32 is: 66,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,521.90 : 122,318.02 = 44,108.32 : x
  2. Step 2: Convert to fraction form
    81,521.90/122,318.02 = 44,108.32/x
  3. Step 3: Cross multiply
    81,521.90x = 122,318.02 × 44,108.32
  4. Step 4: Simplify right side
    81,521.90x = 5,395,242,367.93
  5. Step 5: Solve for x
    x = 5,395,242,367.93/81,521.90
  6. Step 6: Final answer
    x = 66,181.51

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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.