Home / 83,172.78-124,776.72-27,008.58

Finding the Fourth Proportional to 83,172.78, 124,776.72 and 27,008.58

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Solution

The fourth proportional to 83,172.78, 124,776.72 and 27,008.58 is: 40,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,172.78 : 124,776.72 = 27,008.58 : x
  2. Step 2: Convert to fraction form
    83,172.78/124,776.72 = 27,008.58/x
  3. Step 3: Cross multiply
    83,172.78x = 124,776.72 × 27,008.58
  4. Step 4: Simplify right side
    83,172.78x = 3,370,042,024.26
  5. Step 5: Solve for x
    x = 3,370,042,024.26/83,172.78
  6. Step 6: Final answer
    x = 40,518.57

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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.