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Finding the Fourth Proportional to 40,442.59, 60,675.72 and 20,734.89

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Solution

The fourth proportional to 40,442.59, 60,675.72 and 20,734.89 is: 31,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,442.59 : 60,675.72 = 20,734.89 : x
  2. Step 2: Convert to fraction form
    40,442.59/60,675.72 = 20,734.89/x
  3. Step 3: Cross multiply
    40,442.59x = 60,675.72 × 20,734.89
  4. Step 4: Simplify right side
    40,442.59x = 1,258,104,379.87
  5. Step 5: Solve for x
    x = 1,258,104,379.87/40,442.59
  6. Step 6: Final answer
    x = 31,108.40

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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.