Home / 80,911.17-111,657.93-45,103.44

Finding the Fourth Proportional to 80,911.17, 111,657.93 and 45,103.44

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Solution

The fourth proportional to 80,911.17, 111,657.93 and 45,103.44 is: 62,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,911.17 : 111,657.93 = 45,103.44 : x
  2. Step 2: Convert to fraction form
    80,911.17/111,657.93 = 45,103.44/x
  3. Step 3: Cross multiply
    80,911.17x = 111,657.93 × 45,103.44
  4. Step 4: Simplify right side
    80,911.17x = 5,036,156,746.28
  5. Step 5: Solve for x
    x = 5,036,156,746.28/80,911.17
  6. Step 6: Final answer
    x = 62,243.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.