Home / 51,243.10-76,864.65-27,915.10

Finding the Fourth Proportional to 51,243.10, 76,864.65 and 27,915.10

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Solution

The fourth proportional to 51,243.10, 76,864.65 and 27,915.10 is: 41,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,243.10 : 76,864.65 = 27,915.10 : x
  2. Step 2: Convert to fraction form
    51,243.10/76,864.65 = 27,915.10/x
  3. Step 3: Cross multiply
    51,243.10x = 76,864.65 × 27,915.10
  4. Step 4: Simplify right side
    51,243.10x = 2,145,684,391.22
  5. Step 5: Solve for x
    x = 2,145,684,391.22/51,243.10
  6. Step 6: Final answer
    x = 41,872.65

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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.