Home / 51,153.45-76,713.49-18,691.08

Finding the Fourth Proportional to 51,153.45, 76,713.49 and 18,691.08

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Solution

The fourth proportional to 51,153.45, 76,713.49 and 18,691.08 is: 28,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,153.45 : 76,713.49 = 18,691.08 : x
  2. Step 2: Convert to fraction form
    51,153.45/76,713.49 = 18,691.08/x
  3. Step 3: Cross multiply
    51,153.45x = 76,713.49 × 18,691.08
  4. Step 4: Simplify right side
    51,153.45x = 1,433,857,978.67
  5. Step 5: Solve for x
    x = 1,433,857,978.67/51,153.45
  6. Step 6: Final answer
    x = 28,030.52

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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.