Home / 78,719.50-108,632.94-44,728.03

Finding the Fourth Proportional to 78,719.50, 108,632.94 and 44,728.03

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Solution

The fourth proportional to 78,719.50, 108,632.94 and 44,728.03 is: 61,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,719.50 : 108,632.94 = 44,728.03 : x
  2. Step 2: Convert to fraction form
    78,719.50/108,632.94 = 44,728.03/x
  3. Step 3: Cross multiply
    78,719.50x = 108,632.94 × 44,728.03
  4. Step 4: Simplify right side
    78,719.50x = 4,858,937,367.37
  5. Step 5: Solve for x
    x = 4,858,937,367.37/78,719.50
  6. Step 6: Final answer
    x = 61,724.70

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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.