Home / 76,972.11-106,221.20-43,437.87

Finding the Fourth Proportional to 76,972.11, 106,221.20 and 43,437.87

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Solution

The fourth proportional to 76,972.11, 106,221.20 and 43,437.87 is: 59,944.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,972.11 : 106,221.20 = 43,437.87 : x
  2. Step 2: Convert to fraction form
    76,972.11/106,221.20 = 43,437.87/x
  3. Step 3: Cross multiply
    76,972.11x = 106,221.20 × 43,437.87
  4. Step 4: Simplify right side
    76,972.11x = 4,614,022,459.65
  5. Step 5: Solve for x
    x = 4,614,022,459.65/76,972.11
  6. Step 6: Final answer
    x = 59,944.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.