Home / 77,197.48-115,803.78-39,654.52

Finding the Fourth Proportional to 77,197.48, 115,803.78 and 39,654.52

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Solution

The fourth proportional to 77,197.48, 115,803.78 and 39,654.52 is: 59,485.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,197.48 : 115,803.78 = 39,654.52 : x
  2. Step 2: Convert to fraction form
    77,197.48/115,803.78 = 39,654.52/x
  3. Step 3: Cross multiply
    77,197.48x = 115,803.78 × 39,654.52
  4. Step 4: Simplify right side
    77,197.48x = 4,592,143,310.09
  5. Step 5: Solve for x
    x = 4,592,143,310.09/77,197.48
  6. Step 6: Final answer
    x = 59,485.66

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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.