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Finding the Fourth Proportional to 86,334.72, 129,501.72 and 27,175.44

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Solution

The fourth proportional to 86,334.72, 129,501.72 and 27,175.44 is: 40,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,334.72 : 129,501.72 = 27,175.44 : x
  2. Step 2: Convert to fraction form
    86,334.72/129,501.72 = 27,175.44/x
  3. Step 3: Cross multiply
    86,334.72x = 129,501.72 × 27,175.44
  4. Step 4: Simplify right side
    86,334.72x = 3,519,266,221.76
  5. Step 5: Solve for x
    x = 3,519,266,221.76/86,334.72
  6. Step 6: Final answer
    x = 40,763.05

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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.