Home / 39,200.87-58,724.75-31,319.78

Finding the Fourth Proportional to 39,200.87, 58,724.75 and 31,319.78

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Solution

The fourth proportional to 39,200.87, 58,724.75 and 31,319.78 is: 46,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,200.87 : 58,724.75 = 31,319.78 : x
  2. Step 2: Convert to fraction form
    39,200.87/58,724.75 = 31,319.78/x
  3. Step 3: Cross multiply
    39,200.87x = 58,724.75 × 31,319.78
  4. Step 4: Simplify right side
    39,200.87x = 1,839,245,800.33
  5. Step 5: Solve for x
    x = 1,839,245,800.33/39,200.87
  6. Step 6: Final answer
    x = 46,918.50

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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.