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Finding the Fourth Proportional to 66,366.80, 99,665.40 and 35,262.80

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Solution

The fourth proportional to 66,366.80, 99,665.40 and 35,262.80 is: 52,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,366.80 : 99,665.40 = 35,262.80 : x
  2. Step 2: Convert to fraction form
    66,366.80/99,665.40 = 35,262.80/x
  3. Step 3: Cross multiply
    66,366.80x = 99,665.40 × 35,262.80
  4. Step 4: Simplify right side
    66,366.80x = 3,514,481,067.12
  5. Step 5: Solve for x
    x = 3,514,481,067.12/66,366.80
  6. Step 6: Final answer
    x = 52,955.41

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1.5x scale

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.