Home / 66,109.62-99,143.39-21,726.12

Finding the Fourth Proportional to 66,109.62, 99,143.39 and 21,726.12

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Solution

The fourth proportional to 66,109.62, 99,143.39 and 21,726.12 is: 32,582.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.62 : 99,143.39 = 21,726.12 : x
  2. Step 2: Convert to fraction form
    66,109.62/99,143.39 = 21,726.12/x
  3. Step 3: Cross multiply
    66,109.62x = 99,143.39 × 21,726.12
  4. Step 4: Simplify right side
    66,109.62x = 2,154,001,614.45
  5. Step 5: Solve for x
    x = 2,154,001,614.45/66,109.62
  6. Step 6: Final answer
    x = 32,582.27

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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.