Home / 69,711.12-104,475.96-28,109.52

Finding the Fourth Proportional to 69,711.12, 104,475.96 and 28,109.52

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Solution

The fourth proportional to 69,711.12, 104,475.96 and 28,109.52 is: 42,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,711.12 : 104,475.96 = 28,109.52 : x
  2. Step 2: Convert to fraction form
    69,711.12/104,475.96 = 28,109.52/x
  3. Step 3: Cross multiply
    69,711.12x = 104,475.96 × 28,109.52
  4. Step 4: Simplify right side
    69,711.12x = 2,936,769,087.14
  5. Step 5: Solve for x
    x = 2,936,769,087.14/69,711.12
  6. Step 6: Final answer
    x = 42,127.70

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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.