Home / 66,408.65-99,627.57-19,665.17

Finding the Fourth Proportional to 66,408.65, 99,627.57 and 19,665.17

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Solution

The fourth proportional to 66,408.65, 99,627.57 and 19,665.17 is: 29,502.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,408.65 : 99,627.57 = 19,665.17 : x
  2. Step 2: Convert to fraction form
    66,408.65/99,627.57 = 19,665.17/x
  3. Step 3: Cross multiply
    66,408.65x = 99,627.57 × 19,665.17
  4. Step 4: Simplify right side
    66,408.65x = 1,959,192,602.60
  5. Step 5: Solve for x
    x = 1,959,192,602.60/66,408.65
  6. Step 6: Final answer
    x = 29,502.07

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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.