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Finding the Fourth Proportional to 51,195.53, 76,827.88 and 17,915.88

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Solution

The fourth proportional to 51,195.53, 76,827.88 and 17,915.88 is: 26,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,195.53 : 76,827.88 = 17,915.88 : x
  2. Step 2: Convert to fraction form
    51,195.53/76,827.88 = 17,915.88/x
  3. Step 3: Cross multiply
    51,195.53x = 76,827.88 × 17,915.88
  4. Step 4: Simplify right side
    51,195.53x = 1,376,439,364.04
  5. Step 5: Solve for x
    x = 1,376,439,364.04/51,195.53
  6. Step 6: Final answer
    x = 26,885.93

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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.