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Finding the Fourth Proportional to 66,048.30, 99,051.66 and 21,664.73

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Solution

The fourth proportional to 66,048.30, 99,051.66 and 21,664.73 is: 32,490.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,048.30 : 99,051.66 = 21,664.73 : x
  2. Step 2: Convert to fraction form
    66,048.30/99,051.66 = 21,664.73/x
  3. Step 3: Cross multiply
    66,048.30x = 99,051.66 × 21,664.73
  4. Step 4: Simplify right side
    66,048.30x = 2,145,927,717.58
  5. Step 5: Solve for x
    x = 2,145,927,717.58/66,048.30
  6. Step 6: Final answer
    x = 32,490.28

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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.