Home / 80,549.20-111,172.40-46,553

Finding the Fourth Proportional to 80,549.20, 111,172.40 and 46,553

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Solution

The fourth proportional to 80,549.20, 111,172.40 and 46,553 is: 64,251.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,549.20 : 111,172.40 = 46,553 : x
  2. Step 2: Convert to fraction form
    80,549.20/111,172.40 = 46,553/x
  3. Step 3: Cross multiply
    80,549.20x = 111,172.40 × 46,553
  4. Step 4: Simplify right side
    80,549.20x = 5,175,408,737.20
  5. Step 5: Solve for x
    x = 5,175,408,737.20/80,549.20
  6. Step 6: Final answer
    x = 64,251.52

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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.