Home / 77,150.48-115,538.82-53,391.44

Finding the Fourth Proportional to 77,150.48, 115,538.82 and 53,391.44

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Solution

The fourth proportional to 77,150.48, 115,538.82 and 53,391.44 is: 79,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,150.48 : 115,538.82 = 53,391.44 : x
  2. Step 2: Convert to fraction form
    77,150.48/115,538.82 = 53,391.44/x
  3. Step 3: Cross multiply
    77,150.48x = 115,538.82 × 53,391.44
  4. Step 4: Simplify right side
    77,150.48x = 6,168,783,398.01
  5. Step 5: Solve for x
    x = 6,168,783,398.01/77,150.48
  6. Step 6: Final answer
    x = 79,957.81

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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.