Home / 80,557.47-120,817.31-33,160.32

Finding the Fourth Proportional to 80,557.47, 120,817.31 and 33,160.32

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Solution

The fourth proportional to 80,557.47, 120,817.31 and 33,160.32 is: 49,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557.47 : 120,817.31 = 33,160.32 : x
  2. Step 2: Convert to fraction form
    80,557.47/120,817.31 = 33,160.32/x
  3. Step 3: Cross multiply
    80,557.47x = 120,817.31 × 33,160.32
  4. Step 4: Simplify right side
    80,557.47x = 4,006,340,495.34
  5. Step 5: Solve for x
    x = 4,006,340,495.34/80,557.47
  6. Step 6: Final answer
    x = 49,732.70

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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.