Home / 81,149.10-111,990.02-48,893.85

Finding the Fourth Proportional to 81,149.10, 111,990.02 and 48,893.85

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Solution

The fourth proportional to 81,149.10, 111,990.02 and 48,893.85 is: 67,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,149.10 : 111,990.02 = 48,893.85 : x
  2. Step 2: Convert to fraction form
    81,149.10/111,990.02 = 48,893.85/x
  3. Step 3: Cross multiply
    81,149.10x = 111,990.02 × 48,893.85
  4. Step 4: Simplify right side
    81,149.10x = 5,475,622,837.17
  5. Step 5: Solve for x
    x = 5,475,622,837.17/81,149.10
  6. Step 6: Final answer
    x = 67,476.08

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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.