Home / 71,935.83-99,270.36-40,103.91

Finding the Fourth Proportional to 71,935.83, 99,270.36 and 40,103.91

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Solution

The fourth proportional to 71,935.83, 99,270.36 and 40,103.91 is: 55,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,935.83 : 99,270.36 = 40,103.91 : x
  2. Step 2: Convert to fraction form
    71,935.83/99,270.36 = 40,103.91/x
  3. Step 3: Cross multiply
    71,935.83x = 99,270.36 × 40,103.91
  4. Step 4: Simplify right side
    71,935.83x = 3,981,129,583.11
  5. Step 5: Solve for x
    x = 3,981,129,583.11/71,935.83
  6. Step 6: Final answer
    x = 55,342.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.