Home / 80,787.24-120,603.60-75,450.96

Finding the Fourth Proportional to 80,787.24, 120,603.60 and 75,450.96

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Solution

The fourth proportional to 80,787.24, 120,603.60 and 75,450.96 is: 112,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,787.24 : 120,603.60 = 75,450.96 : x
  2. Step 2: Convert to fraction form
    80,787.24/120,603.60 = 75,450.96/x
  3. Step 3: Cross multiply
    80,787.24x = 120,603.60 × 75,450.96
  4. Step 4: Simplify right side
    80,787.24x = 9,099,657,399.46
  5. Step 5: Solve for x
    x = 9,099,657,399.46/80,787.24
  6. Step 6: Final answer
    x = 112,637.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.