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Finding the Fourth Proportional to 79,437.98, 119,156.89 and 20,273.65

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Solution

The fourth proportional to 79,437.98, 119,156.89 and 20,273.65 is: 30,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,437.98 : 119,156.89 = 20,273.65 : x
  2. Step 2: Convert to fraction form
    79,437.98/119,156.89 = 20,273.65/x
  3. Step 3: Cross multiply
    79,437.98x = 119,156.89 × 20,273.65
  4. Step 4: Simplify right side
    79,437.98x = 2,415,745,082.95
  5. Step 5: Solve for x
    x = 2,415,745,082.95/79,437.98
  6. Step 6: Final answer
    x = 30,410.45

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1.5x scale

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.