Home / 79,368.68-109,528.46-43,559.28

Finding the Fourth Proportional to 79,368.68, 109,528.46 and 43,559.28

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Solution

The fourth proportional to 79,368.68, 109,528.46 and 43,559.28 is: 60,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,368.68 : 109,528.46 = 43,559.28 : x
  2. Step 2: Convert to fraction form
    79,368.68/109,528.46 = 43,559.28/x
  3. Step 3: Cross multiply
    79,368.68x = 109,528.46 × 43,559.28
  4. Step 4: Simplify right side
    79,368.68x = 4,770,980,857.11
  5. Step 5: Solve for x
    x = 4,770,980,857.11/79,368.68
  6. Step 6: Final answer
    x = 60,111.63

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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.