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Finding the Fourth Proportional to 86,679.72, 130,037.40 and 27,514.08

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Solution

The fourth proportional to 86,679.72, 130,037.40 and 27,514.08 is: 41,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,679.72 : 130,037.40 = 27,514.08 : x
  2. Step 2: Convert to fraction form
    86,679.72/130,037.40 = 27,514.08/x
  3. Step 3: Cross multiply
    86,679.72x = 130,037.40 × 27,514.08
  4. Step 4: Simplify right side
    86,679.72x = 3,577,859,426.59
  5. Step 5: Solve for x
    x = 3,577,859,426.59/86,679.72
  6. Step 6: Final answer
    x = 41,276.78

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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.