Home / 89,787.17-123,899.37-49,500.81

Finding the Fourth Proportional to 89,787.17, 123,899.37 and 49,500.81

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Solution

The fourth proportional to 89,787.17, 123,899.37 and 49,500.81 is: 68,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,787.17 : 123,899.37 = 49,500.81 : x
  2. Step 2: Convert to fraction form
    89,787.17/123,899.37 = 49,500.81/x
  3. Step 3: Cross multiply
    89,787.17x = 123,899.37 × 49,500.81
  4. Step 4: Simplify right side
    89,787.17x = 6,133,119,173.49
  5. Step 5: Solve for x
    x = 6,133,119,173.49/89,787.17
  6. Step 6: Final answer
    x = 68,307.30

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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.