Home / 86,272.42-129,429.36-27,108.04

Finding the Fourth Proportional to 86,272.42, 129,429.36 and 27,108.04

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Solution

The fourth proportional to 86,272.42, 129,429.36 and 27,108.04 is: 40,668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,272.42 : 129,429.36 = 27,108.04 : x
  2. Step 2: Convert to fraction form
    86,272.42/129,429.36 = 27,108.04/x
  3. Step 3: Cross multiply
    86,272.42x = 129,429.36 × 27,108.04
  4. Step 4: Simplify right side
    86,272.42x = 3,508,576,132.51
  5. Step 5: Solve for x
    x = 3,508,576,132.51/86,272.42
  6. Step 6: Final answer
    x = 40,668.57

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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.