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Finding the Fourth Proportional to 91,751.04, 137,754 and 47,410.56

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Solution

The fourth proportional to 91,751.04, 137,754 and 47,410.56 is: 71,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,751.04 : 137,754 = 47,410.56 : x
  2. Step 2: Convert to fraction form
    91,751.04/137,754 = 47,410.56/x
  3. Step 3: Cross multiply
    91,751.04x = 137,754 × 47,410.56
  4. Step 4: Simplify right side
    91,751.04x = 6,530,994,282.24
  5. Step 5: Solve for x
    x = 6,530,994,282.24/91,751.04
  6. Step 6: Final answer
    x = 71,181.69

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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.