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Finding the Fourth Proportional to 72,377.70, 108,566.55 and 68,576.10

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Solution

The fourth proportional to 72,377.70, 108,566.55 and 68,576.10 is: 102,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,377.70 : 108,566.55 = 68,576.10 : x
  2. Step 2: Convert to fraction form
    72,377.70/108,566.55 = 68,576.10/x
  3. Step 3: Cross multiply
    72,377.70x = 108,566.55 × 68,576.10
  4. Step 4: Simplify right side
    72,377.70x = 7,445,070,589.46
  5. Step 5: Solve for x
    x = 7,445,070,589.46/72,377.70
  6. Step 6: Final answer
    x = 102,864.15

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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.