Home / 51,242.84-76,858.46-13,805.66

Finding the Fourth Proportional to 51,242.84, 76,858.46 and 13,805.66

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Solution

The fourth proportional to 51,242.84, 76,858.46 and 13,805.66 is: 20,706.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,242.84 : 76,858.46 = 13,805.66 : x
  2. Step 2: Convert to fraction form
    51,242.84/76,858.46 = 13,805.66/x
  3. Step 3: Cross multiply
    51,242.84x = 76,858.46 × 13,805.66
  4. Step 4: Simplify right side
    51,242.84x = 1,061,081,417.11
  5. Step 5: Solve for x
    x = 1,061,081,417.11/51,242.84
  6. Step 6: Final answer
    x = 20,706.92

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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.