Home / 85,795.76-128,701.32-22,615.04

Finding the Fourth Proportional to 85,795.76, 128,701.32 and 22,615.04

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Solution

The fourth proportional to 85,795.76, 128,701.32 and 22,615.04 is: 33,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,795.76 : 128,701.32 = 22,615.04 : x
  2. Step 2: Convert to fraction form
    85,795.76/128,701.32 = 22,615.04/x
  3. Step 3: Cross multiply
    85,795.76x = 128,701.32 × 22,615.04
  4. Step 4: Simplify right side
    85,795.76x = 2,910,585,499.85
  5. Step 5: Solve for x
    x = 2,910,585,499.85/85,795.76
  6. Step 6: Final answer
    x = 33,924.58

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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.