Home / 80,111.39-110,595.44-74,810.75

Finding the Fourth Proportional to 80,111.39, 110,595.44 and 74,810.75

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Solution

The fourth proportional to 80,111.39, 110,595.44 and 74,810.75 is: 103,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,111.39 : 110,595.44 = 74,810.75 : x
  2. Step 2: Convert to fraction form
    80,111.39/110,595.44 = 74,810.75/x
  3. Step 3: Cross multiply
    80,111.39x = 110,595.44 × 74,810.75
  4. Step 4: Simplify right side
    80,111.39x = 8,273,727,447.03
  5. Step 5: Solve for x
    x = 8,273,727,447.03/80,111.39
  6. Step 6: Final answer
    x = 103,277.80

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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.