Home / 66,455.30-99,665.94-19,697.24

Finding the Fourth Proportional to 66,455.30, 99,665.94 and 19,697.24

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Solution

The fourth proportional to 66,455.30, 99,665.94 and 19,697.24 is: 29,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,455.30 : 99,665.94 = 19,697.24 : x
  2. Step 2: Convert to fraction form
    66,455.30/99,665.94 = 19,697.24/x
  3. Step 3: Cross multiply
    66,455.30x = 99,665.94 × 19,697.24
  4. Step 4: Simplify right side
    66,455.30x = 1,963,144,263.04
  5. Step 5: Solve for x
    x = 1,963,144,263.04/66,455.30
  6. Step 6: Final answer
    x = 29,540.82

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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.