Home / 57,098.19-78,797.61-31,258.55

Finding the Fourth Proportional to 57,098.19, 78,797.61 and 31,258.55

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Solution

The fourth proportional to 57,098.19, 78,797.61 and 31,258.55 is: 43,137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,098.19 : 78,797.61 = 31,258.55 : x
  2. Step 2: Convert to fraction form
    57,098.19/78,797.61 = 31,258.55/x
  3. Step 3: Cross multiply
    57,098.19x = 78,797.61 × 31,258.55
  4. Step 4: Simplify right side
    57,098.19x = 2,463,099,032.07
  5. Step 5: Solve for x
    x = 2,463,099,032.07/57,098.19
  6. Step 6: Final answer
    x = 43,137.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.