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Finding the Fourth Proportional to 66,026.94, 99,054.18 and 21,650.19

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Solution

The fourth proportional to 66,026.94, 99,054.18 and 21,650.19 is: 32,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,026.94 : 99,054.18 = 21,650.19 : x
  2. Step 2: Convert to fraction form
    66,026.94/99,054.18 = 21,650.19/x
  3. Step 3: Cross multiply
    66,026.94x = 99,054.18 × 21,650.19
  4. Step 4: Simplify right side
    66,026.94x = 2,144,541,817.29
  5. Step 5: Solve for x
    x = 2,144,541,817.29/66,026.94
  6. Step 6: Final answer
    x = 32,479.80

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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.