Home / 63,320.10-87,393.42-40,687.38

Finding the Fourth Proportional to 63,320.10, 87,393.42 and 40,687.38

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Solution

The fourth proportional to 63,320.10, 87,393.42 and 40,687.38 is: 56,156.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,320.10 : 87,393.42 = 40,687.38 : x
  2. Step 2: Convert to fraction form
    63,320.10/87,393.42 = 40,687.38/x
  3. Step 3: Cross multiply
    63,320.10x = 87,393.42 × 40,687.38
  4. Step 4: Simplify right side
    63,320.10x = 3,555,809,289.04
  5. Step 5: Solve for x
    x = 3,555,809,289.04/63,320.10
  6. Step 6: Final answer
    x = 56,156.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.