Home / 86,749.68-130,133.16-40,015.92

Finding the Fourth Proportional to 86,749.68, 130,133.16 and 40,015.92

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Solution

The fourth proportional to 86,749.68, 130,133.16 and 40,015.92 is: 60,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,749.68 : 130,133.16 = 40,015.92 : x
  2. Step 2: Convert to fraction form
    86,749.68/130,133.16 = 40,015.92/x
  3. Step 3: Cross multiply
    86,749.68x = 130,133.16 × 40,015.92
  4. Step 4: Simplify right side
    86,749.68x = 5,207,398,119.91
  5. Step 5: Solve for x
    x = 5,207,398,119.91/86,749.68
  6. Step 6: Final answer
    x = 60,027.87

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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.