Home / 76,789.60-114,924.30-47,226.16

Finding the Fourth Proportional to 76,789.60, 114,924.30 and 47,226.16

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Solution

The fourth proportional to 76,789.60, 114,924.30 and 47,226.16 is: 70,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,789.60 : 114,924.30 = 47,226.16 : x
  2. Step 2: Convert to fraction form
    76,789.60/114,924.30 = 47,226.16/x
  3. Step 3: Cross multiply
    76,789.60x = 114,924.30 × 47,226.16
  4. Step 4: Simplify right side
    76,789.60x = 5,427,433,379.69
  5. Step 5: Solve for x
    x = 5,427,433,379.69/76,789.60
  6. Step 6: Final answer
    x = 70,679.28

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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.