Home / 51,515.84-77,273.76-28,129.52

Finding the Fourth Proportional to 51,515.84, 77,273.76 and 28,129.52

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Solution

The fourth proportional to 51,515.84, 77,273.76 and 28,129.52 is: 42,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.84 : 77,273.76 = 28,129.52 : x
  2. Step 2: Convert to fraction form
    51,515.84/77,273.76 = 28,129.52/x
  3. Step 3: Cross multiply
    51,515.84x = 77,273.76 × 28,129.52
  4. Step 4: Simplify right side
    51,515.84x = 2,173,673,777.40
  5. Step 5: Solve for x
    x = 2,173,673,777.40/51,515.84
  6. Step 6: Final answer
    x = 42,194.28

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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.