Home / 89,864.91-124,015.95-49,579.20

Finding the Fourth Proportional to 89,864.91, 124,015.95 and 49,579.20

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Solution

The fourth proportional to 89,864.91, 124,015.95 and 49,579.20 is: 68,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,864.91 : 124,015.95 = 49,579.20 : x
  2. Step 2: Convert to fraction form
    89,864.91/124,015.95 = 49,579.20/x
  3. Step 3: Cross multiply
    89,864.91x = 124,015.95 × 49,579.20
  4. Step 4: Simplify right side
    89,864.91x = 6,148,611,588.24
  5. Step 5: Solve for x
    x = 6,148,611,588.24/89,864.91
  6. Step 6: Final answer
    x = 68,420.61

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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.