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Finding the Fourth Proportional to 86,680.80, 130,028.40 and 27,514.80

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Solution

The fourth proportional to 86,680.80, 130,028.40 and 27,514.80 is: 41,274.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,680.80 : 130,028.40 = 27,514.80 : x
  2. Step 2: Convert to fraction form
    86,680.80/130,028.40 = 27,514.80/x
  3. Step 3: Cross multiply
    86,680.80x = 130,028.40 × 27,514.80
  4. Step 4: Simplify right side
    86,680.80x = 3,577,705,420.32
  5. Step 5: Solve for x
    x = 3,577,705,420.32/86,680.80
  6. Step 6: Final answer
    x = 41,274.49

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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.