Home / 86,268.81-129,423.66-27,104.49

Finding the Fourth Proportional to 86,268.81, 129,423.66 and 27,104.49

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Solution

The fourth proportional to 86,268.81, 129,423.66 and 27,104.49 is: 40,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,268.81 : 129,423.66 = 27,104.49 : x
  2. Step 2: Convert to fraction form
    86,268.81/129,423.66 = 27,104.49/x
  3. Step 3: Cross multiply
    86,268.81x = 129,423.66 × 27,104.49
  4. Step 4: Simplify right side
    86,268.81x = 3,507,962,196.59
  5. Step 5: Solve for x
    x = 3,507,962,196.59/86,268.81
  6. Step 6: Final answer
    x = 40,663.16

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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.