Home / 78,723.81-108,634.77-44,727.57

Finding the Fourth Proportional to 78,723.81, 108,634.77 and 44,727.57

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Solution

The fourth proportional to 78,723.81, 108,634.77 and 44,727.57 is: 61,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,723.81 : 108,634.77 = 44,727.57 : x
  2. Step 2: Convert to fraction form
    78,723.81/108,634.77 = 44,727.57/x
  3. Step 3: Cross multiply
    78,723.81x = 108,634.77 × 44,727.57
  4. Step 4: Simplify right side
    78,723.81x = 4,858,969,279.61
  5. Step 5: Solve for x
    x = 4,858,969,279.61/78,723.81
  6. Step 6: Final answer
    x = 61,721.72

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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.