Home / 79,518.29-119,277.35-20,353.86

Finding the Fourth Proportional to 79,518.29, 119,277.35 and 20,353.86

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Solution

The fourth proportional to 79,518.29, 119,277.35 and 20,353.86 is: 30,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,518.29 : 119,277.35 = 20,353.86 : x
  2. Step 2: Convert to fraction form
    79,518.29/119,277.35 = 20,353.86/x
  3. Step 3: Cross multiply
    79,518.29x = 119,277.35 × 20,353.86
  4. Step 4: Simplify right side
    79,518.29x = 2,427,754,533.96
  5. Step 5: Solve for x
    x = 2,427,754,533.96/79,518.29
  6. Step 6: Final answer
    x = 30,530.77

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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.