Home / 77,190.60-106,520.73-42,736.86

Finding the Fourth Proportional to 77,190.60, 106,520.73 and 42,736.86

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Solution

The fourth proportional to 77,190.60, 106,520.73 and 42,736.86 is: 58,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,190.60 : 106,520.73 = 42,736.86 : x
  2. Step 2: Convert to fraction form
    77,190.60/106,520.73 = 42,736.86/x
  3. Step 3: Cross multiply
    77,190.60x = 106,520.73 × 42,736.86
  4. Step 4: Simplify right side
    77,190.60x = 4,552,361,901.64
  5. Step 5: Solve for x
    x = 4,552,361,901.64/77,190.60
  6. Step 6: Final answer
    x = 58,975.60

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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.