Home / 76,876.52-106,087.19-45,066.60

Finding the Fourth Proportional to 76,876.52, 106,087.19 and 45,066.60

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Solution

The fourth proportional to 76,876.52, 106,087.19 and 45,066.60 is: 62,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,876.52 : 106,087.19 = 45,066.60 : x
  2. Step 2: Convert to fraction form
    76,876.52/106,087.19 = 45,066.60/x
  3. Step 3: Cross multiply
    76,876.52x = 106,087.19 × 45,066.60
  4. Step 4: Simplify right side
    76,876.52x = 4,780,988,731.52
  5. Step 5: Solve for x
    x = 4,780,988,731.52/76,876.52
  6. Step 6: Final answer
    x = 62,190.50

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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.