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Finding the Fourth Proportional to 66,882.80, 100,341.60 and 19,496.82

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Solution

The fourth proportional to 66,882.80, 100,341.60 and 19,496.82 is: 29,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,882.80 : 100,341.60 = 19,496.82 : x
  2. Step 2: Convert to fraction form
    66,882.80/100,341.60 = 19,496.82/x
  3. Step 3: Cross multiply
    66,882.80x = 100,341.60 × 19,496.82
  4. Step 4: Simplify right side
    66,882.80x = 1,956,342,113.71
  5. Step 5: Solve for x
    x = 1,956,342,113.71/66,882.80
  6. Step 6: Final answer
    x = 29,250.30

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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.