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Finding the Fourth Proportional to 66,183.48, 99,282.51 and 19,440

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Solution

The fourth proportional to 66,183.48, 99,282.51 and 19,440 is: 29,162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,183.48 : 99,282.51 = 19,440 : x
  2. Step 2: Convert to fraction form
    66,183.48/99,282.51 = 19,440/x
  3. Step 3: Cross multiply
    66,183.48x = 99,282.51 × 19,440
  4. Step 4: Simplify right side
    66,183.48x = 1,930,051,994.40
  5. Step 5: Solve for x
    x = 1,930,051,994.40/66,183.48
  6. Step 6: Final answer
    x = 29,162.14

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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.