Home / 86,418.96-129,631.24-27,255.20

Finding the Fourth Proportional to 86,418.96, 129,631.24 and 27,255.20

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Solution

The fourth proportional to 86,418.96, 129,631.24 and 27,255.20 is: 40,883.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,418.96 : 129,631.24 = 27,255.20 : x
  2. Step 2: Convert to fraction form
    86,418.96/129,631.24 = 27,255.20/x
  3. Step 3: Cross multiply
    86,418.96x = 129,631.24 × 27,255.20
  4. Step 4: Simplify right side
    86,418.96x = 3,533,125,372.45
  5. Step 5: Solve for x
    x = 3,533,125,372.45/86,418.96
  6. Step 6: Final answer
    x = 40,883.68

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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.