Home / 89,517.86-134,276.80-42,628.58

Finding the Fourth Proportional to 89,517.86, 134,276.80 and 42,628.58

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Solution

The fourth proportional to 89,517.86, 134,276.80 and 42,628.58 is: 63,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,517.86 : 134,276.80 = 42,628.58 : x
  2. Step 2: Convert to fraction form
    89,517.86/134,276.80 = 42,628.58/x
  3. Step 3: Cross multiply
    89,517.86x = 134,276.80 × 42,628.58
  4. Step 4: Simplify right side
    89,517.86x = 5,724,029,310.94
  5. Step 5: Solve for x
    x = 5,724,029,310.94/89,517.86
  6. Step 6: Final answer
    x = 63,942.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.