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Finding the Fourth Proportional to 80,239.34, 110,734.11 and 48,407.57

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Solution

The fourth proportional to 80,239.34, 110,734.11 and 48,407.57 is: 66,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,239.34 : 110,734.11 = 48,407.57 : x
  2. Step 2: Convert to fraction form
    80,239.34/110,734.11 = 48,407.57/x
  3. Step 3: Cross multiply
    80,239.34x = 110,734.11 × 48,407.57
  4. Step 4: Simplify right side
    80,239.34x = 5,360,369,181.21
  5. Step 5: Solve for x
    x = 5,360,369,181.21/80,239.34
  6. Step 6: Final answer
    x = 66,804.75

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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.