Home / 89,903.28-124,065.36-49,616.31

Finding the Fourth Proportional to 89,903.28, 124,065.36 and 49,616.31

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Solution

The fourth proportional to 89,903.28, 124,065.36 and 49,616.31 is: 68,469.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,903.28 : 124,065.36 = 49,616.31 : x
  2. Step 2: Convert to fraction form
    89,903.28/124,065.36 = 49,616.31/x
  3. Step 3: Cross multiply
    89,903.28x = 124,065.36 × 49,616.31
  4. Step 4: Simplify right side
    89,903.28x = 6,155,665,362.02
  5. Step 5: Solve for x
    x = 6,155,665,362.02/89,903.28
  6. Step 6: Final answer
    x = 68,469.86

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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.