Home / 86,086.04-129,131.37-26,921.71

Finding the Fourth Proportional to 86,086.04, 129,131.37 and 26,921.71

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Solution

The fourth proportional to 86,086.04, 129,131.37 and 26,921.71 is: 40,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,086.04 : 129,131.37 = 26,921.71 : x
  2. Step 2: Convert to fraction form
    86,086.04/129,131.37 = 26,921.71/x
  3. Step 3: Cross multiply
    86,086.04x = 129,131.37 × 26,921.71
  4. Step 4: Simplify right side
    86,086.04x = 3,476,437,160.43
  5. Step 5: Solve for x
    x = 3,476,437,160.43/86,086.04
  6. Step 6: Final answer
    x = 40,383.29

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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.