Home / 79,382.29-109,543.55-47,118.32

Finding the Fourth Proportional to 79,382.29, 109,543.55 and 47,118.32

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Solution

The fourth proportional to 79,382.29, 109,543.55 and 47,118.32 is: 65,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,382.29 : 109,543.55 = 47,118.32 : x
  2. Step 2: Convert to fraction form
    79,382.29/109,543.55 = 47,118.32/x
  3. Step 3: Cross multiply
    79,382.29x = 109,543.55 × 47,118.32
  4. Step 4: Simplify right side
    79,382.29x = 5,161,507,612.91
  5. Step 5: Solve for x
    x = 5,161,507,612.91/79,382.29
  6. Step 6: Final answer
    x = 65,020.90

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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.