Home / 79,518.38-119,277.50-20,353.96

Finding the Fourth Proportional to 79,518.38, 119,277.50 and 20,353.96

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Solution

The fourth proportional to 79,518.38, 119,277.50 and 20,353.96 is: 30,530.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,518.38 : 119,277.50 = 20,353.96 : x
  2. Step 2: Convert to fraction form
    79,518.38/119,277.50 = 20,353.96/x
  3. Step 3: Cross multiply
    79,518.38x = 119,277.50 × 20,353.96
  4. Step 4: Simplify right side
    79,518.38x = 2,427,768,840.29
  5. Step 5: Solve for x
    x = 2,427,768,840.29/79,518.38
  6. Step 6: Final answer
    x = 30,530.91

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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.