Home / 89,489.16-123,498-49,204.35

Finding the Fourth Proportional to 89,489.16, 123,498 and 49,204.35

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Solution

The fourth proportional to 89,489.16, 123,498 and 49,204.35 is: 67,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,489.16 : 123,498 = 49,204.35 : x
  2. Step 2: Convert to fraction form
    89,489.16/123,498 = 49,204.35/x
  3. Step 3: Cross multiply
    89,489.16x = 123,498 × 49,204.35
  4. Step 4: Simplify right side
    89,489.16x = 6,076,638,816.30
  5. Step 5: Solve for x
    x = 6,076,638,816.30/89,489.16
  6. Step 6: Final answer
    x = 67,903.63

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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.