Home / 63,494.08-87,661.68-40,872.40

Finding the Fourth Proportional to 63,494.08, 87,661.68 and 40,872.40

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Solution

The fourth proportional to 63,494.08, 87,661.68 and 40,872.40 is: 56,429.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,494.08 : 87,661.68 = 40,872.40 : x
  2. Step 2: Convert to fraction form
    63,494.08/87,661.68 = 40,872.40/x
  3. Step 3: Cross multiply
    63,494.08x = 87,661.68 × 40,872.40
  4. Step 4: Simplify right side
    63,494.08x = 3,582,943,249.63
  5. Step 5: Solve for x
    x = 3,582,943,249.63/63,494.08
  6. Step 6: Final answer
    x = 56,429.56

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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.