Home / 51,845.40-77,717.54-28,131.50

Finding the Fourth Proportional to 51,845.40, 77,717.54 and 28,131.50

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Solution

The fourth proportional to 51,845.40, 77,717.54 and 28,131.50 is: 42,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,845.40 : 77,717.54 = 28,131.50 : x
  2. Step 2: Convert to fraction form
    51,845.40/77,717.54 = 28,131.50/x
  3. Step 3: Cross multiply
    51,845.40x = 77,717.54 × 28,131.50
  4. Step 4: Simplify right side
    51,845.40x = 2,186,311,241.13
  5. Step 5: Solve for x
    x = 2,186,311,241.13/51,845.40
  6. Step 6: Final answer
    x = 42,169.82

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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.