Home / 86,809.38-130,223.61-27,631.19

Finding the Fourth Proportional to 86,809.38, 130,223.61 and 27,631.19

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Solution

The fourth proportional to 86,809.38, 130,223.61 and 27,631.19 is: 41,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,809.38 : 130,223.61 = 27,631.19 : x
  2. Step 2: Convert to fraction form
    86,809.38/130,223.61 = 27,631.19/x
  3. Step 3: Cross multiply
    86,809.38x = 130,223.61 × 27,631.19
  4. Step 4: Simplify right side
    86,809.38x = 3,598,233,310.40
  5. Step 5: Solve for x
    x = 3,598,233,310.40/86,809.38
  6. Step 6: Final answer
    x = 41,449.82

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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.