Home / 90,915.31-136,393.63-27,741.09

Finding the Fourth Proportional to 90,915.31, 136,393.63 and 27,741.09

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Solution

The fourth proportional to 90,915.31, 136,393.63 and 27,741.09 is: 41,617.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.31 : 136,393.63 = 27,741.09 : x
  2. Step 2: Convert to fraction form
    90,915.31/136,393.63 = 27,741.09/x
  3. Step 3: Cross multiply
    90,915.31x = 136,393.63 × 27,741.09
  4. Step 4: Simplify right side
    90,915.31x = 3,783,707,895.90
  5. Step 5: Solve for x
    x = 3,783,707,895.90/90,915.31
  6. Step 6: Final answer
    x = 41,617.94

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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.