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Finding the Fourth Proportional to 80,510.58, 120,815.01 and 50,887.62

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Solution

The fourth proportional to 80,510.58, 120,815.01 and 50,887.62 is: 76,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510.58 : 120,815.01 = 50,887.62 : x
  2. Step 2: Convert to fraction form
    80,510.58/120,815.01 = 50,887.62/x
  3. Step 3: Cross multiply
    80,510.58x = 120,815.01 × 50,887.62
  4. Step 4: Simplify right side
    80,510.58x = 6,147,988,319.18
  5. Step 5: Solve for x
    x = 6,147,988,319.18/80,510.58
  6. Step 6: Final answer
    x = 76,362.49

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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.