Home / 75,930.15-113,895.23-19,770.10

Finding the Fourth Proportional to 75,930.15, 113,895.23 and 19,770.10

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Solution

The fourth proportional to 75,930.15, 113,895.23 and 19,770.10 is: 29,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,930.15 : 113,895.23 = 19,770.10 : x
  2. Step 2: Convert to fraction form
    75,930.15/113,895.23 = 19,770.10/x
  3. Step 3: Cross multiply
    75,930.15x = 113,895.23 × 19,770.10
  4. Step 4: Simplify right side
    75,930.15x = 2,251,719,842.04
  5. Step 5: Solve for x
    x = 2,251,719,842.04/75,930.15
  6. Step 6: Final answer
    x = 29,655.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.