Home / 90,915.68-136,394.97-28,586.18

Finding the Fourth Proportional to 90,915.68, 136,394.97 and 28,586.18

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Solution

The fourth proportional to 90,915.68, 136,394.97 and 28,586.18 is: 42,886.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.68 : 136,394.97 = 28,586.18 : x
  2. Step 2: Convert to fraction form
    90,915.68/136,394.97 = 28,586.18/x
  3. Step 3: Cross multiply
    90,915.68x = 136,394.97 × 28,586.18
  4. Step 4: Simplify right side
    90,915.68x = 3,899,010,481.54
  5. Step 5: Solve for x
    x = 3,899,010,481.54/90,915.68
  6. Step 6: Final answer
    x = 42,886.01

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1.5x scale

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.