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Finding the Fourth Proportional to 66,681.88, 100,036.50 and 22,309.03

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Solution

The fourth proportional to 66,681.88, 100,036.50 and 22,309.03 is: 33,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,681.88 : 100,036.50 = 22,309.03 : x
  2. Step 2: Convert to fraction form
    66,681.88/100,036.50 = 22,309.03/x
  3. Step 3: Cross multiply
    66,681.88x = 100,036.50 × 22,309.03
  4. Step 4: Simplify right side
    66,681.88x = 2,231,717,029.50
  5. Step 5: Solve for x
    x = 2,231,717,029.50/66,681.88
  6. Step 6: Final answer
    x = 33,468.12

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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.