Home / 75,810.38-113,623.32-53,630.15

Finding the Fourth Proportional to 75,810.38, 113,623.32 and 53,630.15

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Solution

The fourth proportional to 75,810.38, 113,623.32 and 53,630.15 is: 80,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,810.38 : 113,623.32 = 53,630.15 : x
  2. Step 2: Convert to fraction form
    75,810.38/113,623.32 = 53,630.15/x
  3. Step 3: Cross multiply
    75,810.38x = 113,623.32 × 53,630.15
  4. Step 4: Simplify right side
    75,810.38x = 6,093,635,695.10
  5. Step 5: Solve for x
    x = 6,093,635,695.10/75,810.38
  6. Step 6: Final answer
    x = 80,379.97

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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.