Home / 99,915.36-137,878.92-54,592.62

Finding the Fourth Proportional to 99,915.36, 137,878.92 and 54,592.62

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Solution

The fourth proportional to 99,915.36, 137,878.92 and 54,592.62 is: 75,335.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,915.36 : 137,878.92 = 54,592.62 : x
  2. Step 2: Convert to fraction form
    99,915.36/137,878.92 = 54,592.62/x
  3. Step 3: Cross multiply
    99,915.36x = 137,878.92 × 54,592.62
  4. Step 4: Simplify right side
    99,915.36x = 7,527,171,485.57
  5. Step 5: Solve for x
    x = 7,527,171,485.57/99,915.36
  6. Step 6: Final answer
    x = 75,335.48

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1.5x scale

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.