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Finding the Fourth Proportional to 66,002.76, 98,996.10 and 19,255.68

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Solution

The fourth proportional to 66,002.76, 98,996.10 and 19,255.68 is: 28,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,002.76 : 98,996.10 = 19,255.68 : x
  2. Step 2: Convert to fraction form
    66,002.76/98,996.10 = 19,255.68/x
  3. Step 3: Cross multiply
    66,002.76x = 98,996.10 × 19,255.68
  4. Step 4: Simplify right side
    66,002.76x = 1,906,237,222.85
  5. Step 5: Solve for x
    x = 1,906,237,222.85/66,002.76
  6. Step 6: Final answer
    x = 28,881.17

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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.