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Finding the Fourth Proportional to 66,418.40, 99,656.88 and 35,246

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Solution

The fourth proportional to 66,418.40, 99,656.88 and 35,246 is: 52,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,418.40 : 99,656.88 = 35,246 : x
  2. Step 2: Convert to fraction form
    66,418.40/99,656.88 = 35,246/x
  3. Step 3: Cross multiply
    66,418.40x = 99,656.88 × 35,246
  4. Step 4: Simplify right side
    66,418.40x = 3,512,506,392.48
  5. Step 5: Solve for x
    x = 3,512,506,392.48/66,418.40
  6. Step 6: Final answer
    x = 52,884.54

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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.