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Finding the Fourth Proportional to 66,645.99, 99,974.12 and 22,272.91

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Solution

The fourth proportional to 66,645.99, 99,974.12 and 22,272.91 is: 33,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,645.99 : 99,974.12 = 22,272.91 : x
  2. Step 2: Convert to fraction form
    66,645.99/99,974.12 = 22,272.91/x
  3. Step 3: Cross multiply
    66,645.99x = 99,974.12 × 22,272.91
  4. Step 4: Simplify right side
    66,645.99x = 2,226,714,215.79
  5. Step 5: Solve for x
    x = 2,226,714,215.79/66,645.99
  6. Step 6: Final answer
    x = 33,411.08

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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.