Home / 66,429.05-99,626.57-19,670.99

Finding the Fourth Proportional to 66,429.05, 99,626.57 and 19,670.99

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Solution

The fourth proportional to 66,429.05, 99,626.57 and 19,670.99 is: 29,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429.05 : 99,626.57 = 19,670.99 : x
  2. Step 2: Convert to fraction form
    66,429.05/99,626.57 = 19,670.99/x
  3. Step 3: Cross multiply
    66,429.05x = 99,626.57 × 19,670.99
  4. Step 4: Simplify right side
    66,429.05x = 1,959,753,412.92
  5. Step 5: Solve for x
    x = 1,959,753,412.92/66,429.05
  6. Step 6: Final answer
    x = 29,501.45

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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.