Home / 51,283.17-76,918.53-13,840.38

Finding the Fourth Proportional to 51,283.17, 76,918.53 and 13,840.38

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Solution

The fourth proportional to 51,283.17, 76,918.53 and 13,840.38 is: 20,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,283.17 : 76,918.53 = 13,840.38 : x
  2. Step 2: Convert to fraction form
    51,283.17/76,918.53 = 13,840.38/x
  3. Step 3: Cross multiply
    51,283.17x = 76,918.53 × 13,840.38
  4. Step 4: Simplify right side
    51,283.17x = 1,064,581,684.24
  5. Step 5: Solve for x
    x = 1,064,581,684.24/51,283.17
  6. Step 6: Final answer
    x = 20,758.89

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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.