Home / 66,436.72-99,542.32-40,086.12

Finding the Fourth Proportional to 66,436.72, 99,542.32 and 40,086.12

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Solution

The fourth proportional to 66,436.72, 99,542.32 and 40,086.12 is: 60,061.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.72 : 99,542.32 = 40,086.12 : x
  2. Step 2: Convert to fraction form
    66,436.72/99,542.32 = 40,086.12/x
  3. Step 3: Cross multiply
    66,436.72x = 99,542.32 × 40,086.12
  4. Step 4: Simplify right side
    66,436.72x = 3,990,265,384.60
  5. Step 5: Solve for x
    x = 3,990,265,384.60/66,436.72
  6. Step 6: Final answer
    x = 60,061.14

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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.