Home / 89,802.78-123,928.68-49,518

Finding the Fourth Proportional to 89,802.78, 123,928.68 and 49,518

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Solution

The fourth proportional to 89,802.78, 123,928.68 and 49,518 is: 68,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,802.78 : 123,928.68 = 49,518 : x
  2. Step 2: Convert to fraction form
    89,802.78/123,928.68 = 49,518/x
  3. Step 3: Cross multiply
    89,802.78x = 123,928.68 × 49,518
  4. Step 4: Simplify right side
    89,802.78x = 6,136,700,376.24
  5. Step 5: Solve for x
    x = 6,136,700,376.24/89,802.78
  6. Step 6: Final answer
    x = 68,335.31

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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.