Home / 66,176.93-99,267.72-21,199.65

Finding the Fourth Proportional to 66,176.93, 99,267.72 and 21,199.65

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Solution

The fourth proportional to 66,176.93, 99,267.72 and 21,199.65 is: 31,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,176.93 : 99,267.72 = 21,199.65 : x
  2. Step 2: Convert to fraction form
    66,176.93/99,267.72 = 21,199.65/x
  3. Step 3: Cross multiply
    66,176.93x = 99,267.72 × 21,199.65
  4. Step 4: Simplify right side
    66,176.93x = 2,104,440,920.30
  5. Step 5: Solve for x
    x = 2,104,440,920.30/66,176.93
  6. Step 6: Final answer
    x = 31,800.22

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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.