Home / 72,737.25-100,376.75-40,906.38

Finding the Fourth Proportional to 72,737.25, 100,376.75 and 40,906.38

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Solution

The fourth proportional to 72,737.25, 100,376.75 and 40,906.38 is: 56,450.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,737.25 : 100,376.75 = 40,906.38 : x
  2. Step 2: Convert to fraction form
    72,737.25/100,376.75 = 40,906.38/x
  3. Step 3: Cross multiply
    72,737.25x = 100,376.75 × 40,906.38
  4. Step 4: Simplify right side
    72,737.25x = 4,106,049,478.67
  5. Step 5: Solve for x
    x = 4,106,049,478.67/72,737.25
  6. Step 6: Final answer
    x = 56,450.44

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1.5x scale

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.