Home / 66,487.91-99,730.04-22,115.51

Finding the Fourth Proportional to 66,487.91, 99,730.04 and 22,115.51

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Solution

The fourth proportional to 66,487.91, 99,730.04 and 22,115.51 is: 33,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,487.91 : 99,730.04 = 22,115.51 : x
  2. Step 2: Convert to fraction form
    66,487.91/99,730.04 = 22,115.51/x
  3. Step 3: Cross multiply
    66,487.91x = 99,730.04 × 22,115.51
  4. Step 4: Simplify right side
    66,487.91x = 2,205,580,087.69
  5. Step 5: Solve for x
    x = 2,205,580,087.69/66,487.91
  6. Step 6: Final answer
    x = 33,172.65

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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.