Home / 79,589.11-109,830.76-43,779.18

Finding the Fourth Proportional to 79,589.11, 109,830.76 and 43,779.18

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Solution

The fourth proportional to 79,589.11, 109,830.76 and 43,779.18 is: 60,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,589.11 : 109,830.76 = 43,779.18 : x
  2. Step 2: Convert to fraction form
    79,589.11/109,830.76 = 43,779.18/x
  3. Step 3: Cross multiply
    79,589.11x = 109,830.76 × 43,779.18
  4. Step 4: Simplify right side
    79,589.11x = 4,808,301,037.12
  5. Step 5: Solve for x
    x = 4,808,301,037.12/79,589.11
  6. Step 6: Final answer
    x = 60,414.06

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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.