Home / 61,920.38-85,450.32-40,737.66

Finding the Fourth Proportional to 61,920.38, 85,450.32 and 40,737.66

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Solution

The fourth proportional to 61,920.38, 85,450.32 and 40,737.66 is: 56,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.38 : 85,450.32 = 40,737.66 : x
  2. Step 2: Convert to fraction form
    61,920.38/85,450.32 = 40,737.66/x
  3. Step 3: Cross multiply
    61,920.38x = 85,450.32 × 40,737.66
  4. Step 4: Simplify right side
    61,920.38x = 3,481,046,083.05
  5. Step 5: Solve for x
    x = 3,481,046,083.05/61,920.38
  6. Step 6: Final answer
    x = 56,218.10

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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.