Home / 80,531.12-111,115.04-48,699.34

Finding the Fourth Proportional to 80,531.12, 111,115.04 and 48,699.34

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Solution

The fourth proportional to 80,531.12, 111,115.04 and 48,699.34 is: 67,194.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,531.12 : 111,115.04 = 48,699.34 : x
  2. Step 2: Convert to fraction form
    80,531.12/111,115.04 = 48,699.34/x
  3. Step 3: Cross multiply
    80,531.12x = 111,115.04 × 48,699.34
  4. Step 4: Simplify right side
    80,531.12x = 5,411,229,112.07
  5. Step 5: Solve for x
    x = 5,411,229,112.07/80,531.12
  6. Step 6: Final answer
    x = 67,194.26

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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.