Home / 80,501.58-120,801.51-50,878.62

Finding the Fourth Proportional to 80,501.58, 120,801.51 and 50,878.62

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Solution

The fourth proportional to 80,501.58, 120,801.51 and 50,878.62 is: 76,348.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,501.58 : 120,801.51 = 50,878.62 : x
  2. Step 2: Convert to fraction form
    80,501.58/120,801.51 = 50,878.62/x
  3. Step 3: Cross multiply
    80,501.58x = 120,801.51 × 50,878.62
  4. Step 4: Simplify right side
    80,501.58x = 6,146,214,122.72
  5. Step 5: Solve for x
    x = 6,146,214,122.72/80,501.58
  6. Step 6: Final answer
    x = 76,348.99

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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.