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Finding the Fourth Proportional to 66,805.79, 100,217.90 and 22,445.22

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Solution

The fourth proportional to 66,805.79, 100,217.90 and 22,445.22 is: 33,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,805.79 : 100,217.90 = 22,445.22 : x
  2. Step 2: Convert to fraction form
    66,805.79/100,217.90 = 22,445.22/x
  3. Step 3: Cross multiply
    66,805.79x = 100,217.90 × 22,445.22
  4. Step 4: Simplify right side
    66,805.79x = 2,249,412,701.21
  5. Step 5: Solve for x
    x = 2,249,412,701.21/66,805.79
  6. Step 6: Final answer
    x = 33,670.93

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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.