Home / 76,747.12-105,914.16-42,755.52

Finding the Fourth Proportional to 76,747.12, 105,914.16 and 42,755.52

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Solution

The fourth proportional to 76,747.12, 105,914.16 and 42,755.52 is: 59,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,747.12 : 105,914.16 = 42,755.52 : x
  2. Step 2: Convert to fraction form
    76,747.12/105,914.16 = 42,755.52/x
  3. Step 3: Cross multiply
    76,747.12x = 105,914.16 × 42,755.52
  4. Step 4: Simplify right side
    76,747.12x = 4,528,414,986.16
  5. Step 5: Solve for x
    x = 4,528,414,986.16/76,747.12
  6. Step 6: Final answer
    x = 59,004.36

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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.