Home / 66,519.24-99,795.42-19,772.10

Finding the Fourth Proportional to 66,519.24, 99,795.42 and 19,772.10

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Solution

The fourth proportional to 66,519.24, 99,795.42 and 19,772.10 is: 29,663.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,519.24 : 99,795.42 = 19,772.10 : x
  2. Step 2: Convert to fraction form
    66,519.24/99,795.42 = 19,772.10/x
  3. Step 3: Cross multiply
    66,519.24x = 99,795.42 × 19,772.10
  4. Step 4: Simplify right side
    66,519.24x = 1,973,165,023.78
  5. Step 5: Solve for x
    x = 1,973,165,023.78/66,519.24
  6. Step 6: Final answer
    x = 29,663.07

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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.