Home / 87,915.84-121,345.58-50,211.96

Finding the Fourth Proportional to 87,915.84, 121,345.58 and 50,211.96

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Solution

The fourth proportional to 87,915.84, 121,345.58 and 50,211.96 is: 69,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,915.84 : 121,345.58 = 50,211.96 : x
  2. Step 2: Convert to fraction form
    87,915.84/121,345.58 = 50,211.96/x
  3. Step 3: Cross multiply
    87,915.84x = 121,345.58 × 50,211.96
  4. Step 4: Simplify right side
    87,915.84x = 6,092,999,409.14
  5. Step 5: Solve for x
    x = 6,092,999,409.14/87,915.84
  6. Step 6: Final answer
    x = 69,304.91

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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.