Home / 39,845.84-59,712.82-31,489.12

Finding the Fourth Proportional to 39,845.84, 59,712.82 and 31,489.12

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Solution

The fourth proportional to 39,845.84, 59,712.82 and 31,489.12 is: 47,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,845.84 : 59,712.82 = 31,489.12 : x
  2. Step 2: Convert to fraction form
    39,845.84/59,712.82 = 31,489.12/x
  3. Step 3: Cross multiply
    39,845.84x = 59,712.82 × 31,489.12
  4. Step 4: Simplify right side
    39,845.84x = 1,880,304,154.52
  5. Step 5: Solve for x
    x = 1,880,304,154.52/39,845.84
  6. Step 6: Final answer
    x = 47,189.47

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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.