Home / 76,219.05-105,072.60-53,487.61

Finding the Fourth Proportional to 76,219.05, 105,072.60 and 53,487.61

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Solution

The fourth proportional to 76,219.05, 105,072.60 and 53,487.61 is: 73,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,219.05 : 105,072.60 = 53,487.61 : x
  2. Step 2: Convert to fraction form
    76,219.05/105,072.60 = 53,487.61/x
  3. Step 3: Cross multiply
    76,219.05x = 105,072.60 × 53,487.61
  4. Step 4: Simplify right side
    76,219.05x = 5,620,082,250.49
  5. Step 5: Solve for x
    x = 5,620,082,250.49/76,219.05
  6. Step 6: Final answer
    x = 73,735.93

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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.