Home / 77,365.10-115,938.30-47,694.80

Finding the Fourth Proportional to 77,365.10, 115,938.30 and 47,694.80

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Solution

The fourth proportional to 77,365.10, 115,938.30 and 47,694.80 is: 71,474.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,365.10 : 115,938.30 = 47,694.80 : x
  2. Step 2: Convert to fraction form
    77,365.10/115,938.30 = 47,694.80/x
  3. Step 3: Cross multiply
    77,365.10x = 115,938.30 × 47,694.80
  4. Step 4: Simplify right side
    77,365.10x = 5,529,654,030.84
  5. Step 5: Solve for x
    x = 5,529,654,030.84/77,365.10
  6. Step 6: Final answer
    x = 71,474.79

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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.