Home / 66,351.96-91,626.56-42,160.89

Finding the Fourth Proportional to 66,351.96, 91,626.56 and 42,160.89

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Solution

The fourth proportional to 66,351.96, 91,626.56 and 42,160.89 is: 58,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,351.96 : 91,626.56 = 42,160.89 : x
  2. Step 2: Convert to fraction form
    66,351.96/91,626.56 = 42,160.89/x
  3. Step 3: Cross multiply
    66,351.96x = 91,626.56 × 42,160.89
  4. Step 4: Simplify right side
    66,351.96x = 3,863,057,211.84
  5. Step 5: Solve for x
    x = 3,863,057,211.84/66,351.96
  6. Step 6: Final answer
    x = 58,220.70

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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.