Home / 87,020.82-130,568.44-36,431.66

Finding the Fourth Proportional to 87,020.82, 130,568.44 and 36,431.66

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Solution

The fourth proportional to 87,020.82, 130,568.44 and 36,431.66 is: 54,663.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,020.82 : 130,568.44 = 36,431.66 : x
  2. Step 2: Convert to fraction form
    87,020.82/130,568.44 = 36,431.66/x
  3. Step 3: Cross multiply
    87,020.82x = 130,568.44 × 36,431.66
  4. Step 4: Simplify right side
    87,020.82x = 4,756,825,012.81
  5. Step 5: Solve for x
    x = 4,756,825,012.81/87,020.82
  6. Step 6: Final answer
    x = 54,663.07

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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.