Home / 76,737.45-105,902.54-43,205.61

Finding the Fourth Proportional to 76,737.45, 105,902.54 and 43,205.61

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Solution

The fourth proportional to 76,737.45, 105,902.54 and 43,205.61 is: 59,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,737.45 : 105,902.54 = 43,205.61 : x
  2. Step 2: Convert to fraction form
    76,737.45/105,902.54 = 43,205.61/x
  3. Step 3: Cross multiply
    76,737.45x = 105,902.54 × 43,205.61
  4. Step 4: Simplify right side
    76,737.45x = 4,575,583,841.25
  5. Step 5: Solve for x
    x = 4,575,583,841.25/76,737.45
  6. Step 6: Final answer
    x = 59,626.48

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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.