Home / 66,205.91-99,298.59-18,823.20

Finding the Fourth Proportional to 66,205.91, 99,298.59 and 18,823.20

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Solution

The fourth proportional to 66,205.91, 99,298.59 and 18,823.20 is: 28,231.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,205.91 : 99,298.59 = 18,823.20 : x
  2. Step 2: Convert to fraction form
    66,205.91/99,298.59 = 18,823.20/x
  3. Step 3: Cross multiply
    66,205.91x = 99,298.59 × 18,823.20
  4. Step 4: Simplify right side
    66,205.91x = 1,869,117,219.29
  5. Step 5: Solve for x
    x = 1,869,117,219.29/66,205.91
  6. Step 6: Final answer
    x = 28,231.88

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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.