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Finding the Fourth Proportional to 66,525, 99,791.63 and 22,155.72

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Solution

The fourth proportional to 66,525, 99,791.63 and 22,155.72 is: 33,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,525 : 99,791.63 = 22,155.72 : x
  2. Step 2: Convert to fraction form
    66,525/99,791.63 = 22,155.72/x
  3. Step 3: Cross multiply
    66,525x = 99,791.63 × 22,155.72
  4. Step 4: Simplify right side
    66,525x = 2,210,955,412.62
  5. Step 5: Solve for x
    x = 2,210,955,412.62/66,525
  6. Step 6: Final answer
    x = 33,234.96

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Double scale
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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.