Home / 86,686.96-130,029.22-27,521.72

Finding the Fourth Proportional to 86,686.96, 130,029.22 and 27,521.72

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Solution

The fourth proportional to 86,686.96, 130,029.22 and 27,521.72 is: 41,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,686.96 : 130,029.22 = 27,521.72 : x
  2. Step 2: Convert to fraction form
    86,686.96/130,029.22 = 27,521.72/x
  3. Step 3: Cross multiply
    86,686.96x = 130,029.22 × 27,521.72
  4. Step 4: Simplify right side
    86,686.96x = 3,578,627,784.66
  5. Step 5: Solve for x
    x = 3,578,627,784.66/86,686.96
  6. Step 6: Final answer
    x = 41,282.19

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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.