Home / 58,318.69-87,468.66-20,871.79

Finding the Fourth Proportional to 58,318.69, 87,468.66 and 20,871.79

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Solution

The fourth proportional to 58,318.69, 87,468.66 and 20,871.79 is: 31,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,318.69 : 87,468.66 = 20,871.79 : x
  2. Step 2: Convert to fraction form
    58,318.69/87,468.66 = 20,871.79/x
  3. Step 3: Cross multiply
    58,318.69x = 87,468.66 × 20,871.79
  4. Step 4: Simplify right side
    58,318.69x = 1,825,627,503.10
  5. Step 5: Solve for x
    x = 1,825,627,503.10/58,318.69
  6. Step 6: Final answer
    x = 31,304.33

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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.