Home / 63,221.28-87,137.28-49,047.36

Finding the Fourth Proportional to 63,221.28, 87,137.28 and 49,047.36

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Solution

The fourth proportional to 63,221.28, 87,137.28 and 49,047.36 is: 67,601.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,221.28 : 87,137.28 = 49,047.36 : x
  2. Step 2: Convert to fraction form
    63,221.28/87,137.28 = 49,047.36/x
  3. Step 3: Cross multiply
    63,221.28x = 87,137.28 × 49,047.36
  4. Step 4: Simplify right side
    63,221.28x = 4,273,853,541.58
  5. Step 5: Solve for x
    x = 4,273,853,541.58/63,221.28
  6. Step 6: Final answer
    x = 67,601.50

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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.