Home / 76,845.12-106,047.10-43,311.12

Finding the Fourth Proportional to 76,845.12, 106,047.10 and 43,311.12

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Solution

The fourth proportional to 76,845.12, 106,047.10 and 43,311.12 is: 59,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,845.12 : 106,047.10 = 43,311.12 : x
  2. Step 2: Convert to fraction form
    76,845.12/106,047.10 = 43,311.12/x
  3. Step 3: Cross multiply
    76,845.12x = 106,047.10 × 43,311.12
  4. Step 4: Simplify right side
    76,845.12x = 4,593,018,673.75
  5. Step 5: Solve for x
    x = 4,593,018,673.75/76,845.12
  6. Step 6: Final answer
    x = 59,769.82

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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.