Home / 89,838.72-123,977.16-51,600.74

Finding the Fourth Proportional to 89,838.72, 123,977.16 and 51,600.74

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Solution

The fourth proportional to 89,838.72, 123,977.16 and 51,600.74 is: 71,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,838.72 : 123,977.16 = 51,600.74 : x
  2. Step 2: Convert to fraction form
    89,838.72/123,977.16 = 51,600.74/x
  3. Step 3: Cross multiply
    89,838.72x = 123,977.16 × 51,600.74
  4. Step 4: Simplify right side
    89,838.72x = 6,397,312,579.21
  5. Step 5: Solve for x
    x = 6,397,312,579.21/89,838.72
  6. Step 6: Final answer
    x = 71,208.86

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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.