Home / 89,664.48-123,731.28-53,856

Finding the Fourth Proportional to 89,664.48, 123,731.28 and 53,856

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Solution

The fourth proportional to 89,664.48, 123,731.28 and 53,856 is: 74,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,664.48 : 123,731.28 = 53,856 : x
  2. Step 2: Convert to fraction form
    89,664.48/123,731.28 = 53,856/x
  3. Step 3: Cross multiply
    89,664.48x = 123,731.28 × 53,856
  4. Step 4: Simplify right side
    89,664.48x = 6,663,671,815.68
  5. Step 5: Solve for x
    x = 6,663,671,815.68/89,664.48
  6. Step 6: Final answer
    x = 74,317.85

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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.