Home / 68,880.06-103,221.42-39,236.69

Finding the Fourth Proportional to 68,880.06, 103,221.42 and 39,236.69

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Solution

The fourth proportional to 68,880.06, 103,221.42 and 39,236.69 is: 58,798.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,880.06 : 103,221.42 = 39,236.69 : x
  2. Step 2: Convert to fraction form
    68,880.06/103,221.42 = 39,236.69/x
  3. Step 3: Cross multiply
    68,880.06x = 103,221.42 × 39,236.69
  4. Step 4: Simplify right side
    68,880.06x = 4,050,066,341.79
  5. Step 5: Solve for x
    x = 4,050,066,341.79/68,880.06
  6. Step 6: Final answer
    x = 58,798.82

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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.