Home / 79,001.36-109,049.32-45,480.72

Finding the Fourth Proportional to 79,001.36, 109,049.32 and 45,480.72

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Solution

The fourth proportional to 79,001.36, 109,049.32 and 45,480.72 is: 62,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,001.36 : 109,049.32 = 45,480.72 : x
  2. Step 2: Convert to fraction form
    79,001.36/109,049.32 = 45,480.72/x
  3. Step 3: Cross multiply
    79,001.36x = 109,049.32 × 45,480.72
  4. Step 4: Simplify right side
    79,001.36x = 4,959,641,589.11
  5. Step 5: Solve for x
    x = 4,959,641,589.11/79,001.36
  6. Step 6: Final answer
    x = 62,779.19

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1.5x scale

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.