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Finding the Fourth Proportional to 86,188.67, 129,283 and 27,029.10

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Solution

The fourth proportional to 86,188.67, 129,283 and 27,029.10 is: 40,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,188.67 : 129,283 = 27,029.10 : x
  2. Step 2: Convert to fraction form
    86,188.67/129,283 = 27,029.10/x
  3. Step 3: Cross multiply
    86,188.67x = 129,283 × 27,029.10
  4. Step 4: Simplify right side
    86,188.67x = 3,494,403,135.30
  5. Step 5: Solve for x
    x = 3,494,403,135.30/86,188.67
  6. Step 6: Final answer
    x = 40,543.65

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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.