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Finding the Fourth Proportional to 66,510.94, 99,767.34 and 22,137.86

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Solution

The fourth proportional to 66,510.94, 99,767.34 and 22,137.86 is: 33,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.94 : 99,767.34 = 22,137.86 : x
  2. Step 2: Convert to fraction form
    66,510.94/99,767.34 = 22,137.86/x
  3. Step 3: Cross multiply
    66,510.94x = 99,767.34 × 22,137.86
  4. Step 4: Simplify right side
    66,510.94x = 2,208,635,405.49
  5. Step 5: Solve for x
    x = 2,208,635,405.49/66,510.94
  6. Step 6: Final answer
    x = 33,207.10

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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.