Home / 66,160.91-99,247.31-18,776.72

Finding the Fourth Proportional to 66,160.91, 99,247.31 and 18,776.72

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Solution

The fourth proportional to 66,160.91, 99,247.31 and 18,776.72 is: 28,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.91 : 99,247.31 = 18,776.72 : x
  2. Step 2: Convert to fraction form
    66,160.91/99,247.31 = 18,776.72/x
  3. Step 3: Cross multiply
    66,160.91x = 99,247.31 × 18,776.72
  4. Step 4: Simplify right side
    66,160.91x = 1,863,539,175.27
  5. Step 5: Solve for x
    x = 1,863,539,175.27/66,160.91
  6. Step 6: Final answer
    x = 28,166.77

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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.