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Finding the Fourth Proportional to 66,409.29, 99,643.10 and 35,246.97

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Solution

The fourth proportional to 66,409.29, 99,643.10 and 35,246.97 is: 52,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,409.29 : 99,643.10 = 35,246.97 : x
  2. Step 2: Convert to fraction form
    66,409.29/99,643.10 = 35,246.97/x
  3. Step 3: Cross multiply
    66,409.29x = 99,643.10 × 35,246.97
  4. Step 4: Simplify right side
    66,409.29x = 3,512,117,180.17
  5. Step 5: Solve for x
    x = 3,512,117,180.17/66,409.29
  6. Step 6: Final answer
    x = 52,885.93

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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.