Home / 51,242.46-76,857.90-13,805.28

Finding the Fourth Proportional to 51,242.46, 76,857.90 and 13,805.28

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Solution

The fourth proportional to 51,242.46, 76,857.90 and 13,805.28 is: 20,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,242.46 : 76,857.90 = 13,805.28 : x
  2. Step 2: Convert to fraction form
    51,242.46/76,857.90 = 13,805.28/x
  3. Step 3: Cross multiply
    51,242.46x = 76,857.90 × 13,805.28
  4. Step 4: Simplify right side
    51,242.46x = 1,061,044,829.71
  5. Step 5: Solve for x
    x = 1,061,044,829.71/51,242.46
  6. Step 6: Final answer
    x = 20,706.36

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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.