Home / 86,278.96-129,352.56-27,080.38

Finding the Fourth Proportional to 86,278.96, 129,352.56 and 27,080.38

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Solution

The fourth proportional to 86,278.96, 129,352.56 and 27,080.38 is: 40,599.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,278.96 : 129,352.56 = 27,080.38 : x
  2. Step 2: Convert to fraction form
    86,278.96/129,352.56 = 27,080.38/x
  3. Step 3: Cross multiply
    86,278.96x = 129,352.56 × 27,080.38
  4. Step 4: Simplify right side
    86,278.96x = 3,502,916,478.77
  5. Step 5: Solve for x
    x = 3,502,916,478.77/86,278.96
  6. Step 6: Final answer
    x = 40,599.89

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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.