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Finding the Fourth Proportional to 86,775.63, 130,161 and 27,614.85

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Solution

The fourth proportional to 86,775.63, 130,161 and 27,614.85 is: 41,421.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,775.63 : 130,161 = 27,614.85 : x
  2. Step 2: Convert to fraction form
    86,775.63/130,161 = 27,614.85/x
  3. Step 3: Cross multiply
    86,775.63x = 130,161 × 27,614.85
  4. Step 4: Simplify right side
    86,775.63x = 3,594,376,490.85
  5. Step 5: Solve for x
    x = 3,594,376,490.85/86,775.63
  6. Step 6: Final answer
    x = 41,421.50

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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.