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Finding the Fourth Proportional to 86,849.60, 130,207.65 and 44,119.90

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Solution

The fourth proportional to 86,849.60, 130,207.65 and 44,119.90 is: 66,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,849.60 : 130,207.65 = 44,119.90 : x
  2. Step 2: Convert to fraction form
    86,849.60/130,207.65 = 44,119.90/x
  3. Step 3: Cross multiply
    86,849.60x = 130,207.65 × 44,119.90
  4. Step 4: Simplify right side
    86,849.60x = 5,744,748,210.56
  5. Step 5: Solve for x
    x = 5,744,748,210.56/86,849.60
  6. Step 6: Final answer
    x = 66,145.94

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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.