Home / 73,020.18-109,734.74-43,442.58

Finding the Fourth Proportional to 73,020.18, 109,734.74 and 43,442.58

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Solution

The fourth proportional to 73,020.18, 109,734.74 and 43,442.58 is: 65,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,020.18 : 109,734.74 = 43,442.58 : x
  2. Step 2: Convert to fraction form
    73,020.18/109,734.74 = 43,442.58/x
  3. Step 3: Cross multiply
    73,020.18x = 109,734.74 × 43,442.58
  4. Step 4: Simplify right side
    73,020.18x = 4,767,160,221.23
  5. Step 5: Solve for x
    x = 4,767,160,221.23/73,020.18
  6. Step 6: Final answer
    x = 65,285.52

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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.