Home / 76,623.36-114,835.08-47,760.05

Finding the Fourth Proportional to 76,623.36, 114,835.08 and 47,760.05

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Solution

The fourth proportional to 76,623.36, 114,835.08 and 47,760.05 is: 71,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,623.36 : 114,835.08 = 47,760.05 : x
  2. Step 2: Convert to fraction form
    76,623.36/114,835.08 = 47,760.05/x
  3. Step 3: Cross multiply
    76,623.36x = 114,835.08 × 47,760.05
  4. Step 4: Simplify right side
    76,623.36x = 5,484,529,628.74
  5. Step 5: Solve for x
    x = 5,484,529,628.74/76,623.36
  6. Step 6: Final answer
    x = 71,577.78

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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.