Home / 66,225.43-99,341.59-21,855.65

Finding the Fourth Proportional to 66,225.43, 99,341.59 and 21,855.65

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Solution

The fourth proportional to 66,225.43, 99,341.59 and 21,855.65 is: 32,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.43 : 99,341.59 = 21,855.65 : x
  2. Step 2: Convert to fraction form
    66,225.43/99,341.59 = 21,855.65/x
  3. Step 3: Cross multiply
    66,225.43x = 99,341.59 × 21,855.65
  4. Step 4: Simplify right side
    66,225.43x = 2,171,175,021.48
  5. Step 5: Solve for x
    x = 2,171,175,021.48/66,225.43
  6. Step 6: Final answer
    x = 32,784.61

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1.5x scale

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.