Home / 89,965.84-124,152.86-49,679.68

Finding the Fourth Proportional to 89,965.84, 124,152.86 and 49,679.68

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Solution

The fourth proportional to 89,965.84, 124,152.86 and 49,679.68 is: 68,557.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,965.84 : 124,152.86 = 49,679.68 : x
  2. Step 2: Convert to fraction form
    89,965.84/124,152.86 = 49,679.68/x
  3. Step 3: Cross multiply
    89,965.84x = 124,152.86 × 49,679.68
  4. Step 4: Simplify right side
    89,965.84x = 6,167,874,355.88
  5. Step 5: Solve for x
    x = 6,167,874,355.88/89,965.84
  6. Step 6: Final answer
    x = 68,557.96

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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.