Home / 78,071.22-107,710.29-44,517.78

Finding the Fourth Proportional to 78,071.22, 107,710.29 and 44,517.78

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Solution

The fourth proportional to 78,071.22, 107,710.29 and 44,517.78 is: 61,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,071.22 : 107,710.29 = 44,517.78 : x
  2. Step 2: Convert to fraction form
    78,071.22/107,710.29 = 44,517.78/x
  3. Step 3: Cross multiply
    78,071.22x = 107,710.29 × 44,517.78
  4. Step 4: Simplify right side
    78,071.22x = 4,795,022,993.96
  5. Step 5: Solve for x
    x = 4,795,022,993.96/78,071.22
  6. Step 6: Final answer
    x = 61,418.57

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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.