Home / 57,989.42-86,959.52-20,558.91

Finding the Fourth Proportional to 57,989.42, 86,959.52 and 20,558.91

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Solution

The fourth proportional to 57,989.42, 86,959.52 and 20,558.91 is: 30,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,989.42 : 86,959.52 = 20,558.91 : x
  2. Step 2: Convert to fraction form
    57,989.42/86,959.52 = 20,558.91/x
  3. Step 3: Cross multiply
    57,989.42x = 86,959.52 × 20,558.91
  4. Step 4: Simplify right side
    57,989.42x = 1,787,792,842.53
  5. Step 5: Solve for x
    x = 1,787,792,842.53/57,989.42
  6. Step 6: Final answer
    x = 30,829.64

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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.