Home / 79,577.87-109,820.94-43,769.18

Finding the Fourth Proportional to 79,577.87, 109,820.94 and 43,769.18

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Solution

The fourth proportional to 79,577.87, 109,820.94 and 43,769.18 is: 60,403.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,577.87 : 109,820.94 = 43,769.18 : x
  2. Step 2: Convert to fraction form
    79,577.87/109,820.94 = 43,769.18/x
  3. Step 3: Cross multiply
    79,577.87x = 109,820.94 × 43,769.18
  4. Step 4: Simplify right side
    79,577.87x = 4,806,772,601.05
  5. Step 5: Solve for x
    x = 4,806,772,601.05/79,577.87
  6. Step 6: Final answer
    x = 60,403.39

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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.