Home / 90,915.68-136,394.18-27,741.45

Finding the Fourth Proportional to 90,915.68, 136,394.18 and 27,741.45

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Solution

The fourth proportional to 90,915.68, 136,394.18 and 27,741.45 is: 41,618.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.68 : 136,394.18 = 27,741.45 : x
  2. Step 2: Convert to fraction form
    90,915.68/136,394.18 = 27,741.45/x
  3. Step 3: Cross multiply
    90,915.68x = 136,394.18 × 27,741.45
  4. Step 4: Simplify right side
    90,915.68x = 3,783,772,801.56
  5. Step 5: Solve for x
    x = 3,783,772,801.56/90,915.68
  6. Step 6: Final answer
    x = 41,618.48

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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.