Home / 66,506.10-99,689.04-22,120.98

Finding the Fourth Proportional to 66,506.10, 99,689.04 and 22,120.98

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Solution

The fourth proportional to 66,506.10, 99,689.04 and 22,120.98 is: 33,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506.10 : 99,689.04 = 22,120.98 : x
  2. Step 2: Convert to fraction form
    66,506.10/99,689.04 = 22,120.98/x
  3. Step 3: Cross multiply
    66,506.10x = 99,689.04 × 22,120.98
  4. Step 4: Simplify right side
    66,506.10x = 2,205,219,260.06
  5. Step 5: Solve for x
    x = 2,205,219,260.06/66,506.10
  6. Step 6: Final answer
    x = 33,158.15

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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.