Home / 90,915.26-136,327.28-52,976.82

Finding the Fourth Proportional to 90,915.26, 136,327.28 and 52,976.82

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Solution

The fourth proportional to 90,915.26, 136,327.28 and 52,976.82 is: 79,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.26 : 136,327.28 = 52,976.82 : x
  2. Step 2: Convert to fraction form
    90,915.26/136,327.28 = 52,976.82/x
  3. Step 3: Cross multiply
    90,915.26x = 136,327.28 × 52,976.82
  4. Step 4: Simplify right side
    90,915.26x = 7,222,185,773.65
  5. Step 5: Solve for x
    x = 7,222,185,773.65/90,915.26
  6. Step 6: Final answer
    x = 79,438.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.