Home / 87,310.81-130,908.84-42,320.26

Finding the Fourth Proportional to 87,310.81, 130,908.84 and 42,320.26

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Solution

The fourth proportional to 87,310.81, 130,908.84 and 42,320.26 is: 63,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,310.81 : 130,908.84 = 42,320.26 : x
  2. Step 2: Convert to fraction form
    87,310.81/130,908.84 = 42,320.26/x
  3. Step 3: Cross multiply
    87,310.81x = 130,908.84 × 42,320.26
  4. Step 4: Simplify right side
    87,310.81x = 5,540,096,145.10
  5. Step 5: Solve for x
    x = 5,540,096,145.10/87,310.81
  6. Step 6: Final answer
    x = 63,452.58

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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.