Home / 80,569.11-111,136.11-47,841.34

Finding the Fourth Proportional to 80,569.11, 111,136.11 and 47,841.34

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Solution

The fourth proportional to 80,569.11, 111,136.11 and 47,841.34 is: 65,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,569.11 : 111,136.11 = 47,841.34 : x
  2. Step 2: Convert to fraction form
    80,569.11/111,136.11 = 47,841.34/x
  3. Step 3: Cross multiply
    80,569.11x = 111,136.11 × 47,841.34
  4. Step 4: Simplify right side
    80,569.11x = 5,316,900,185.58
  5. Step 5: Solve for x
    x = 5,316,900,185.58/80,569.11
  6. Step 6: Final answer
    x = 65,991.79

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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.