Home / 51,515.34-77,273.01-28,129.02

Finding the Fourth Proportional to 51,515.34, 77,273.01 and 28,129.02

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Solution

The fourth proportional to 51,515.34, 77,273.01 and 28,129.02 is: 42,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.34 : 77,273.01 = 28,129.02 : x
  2. Step 2: Convert to fraction form
    51,515.34/77,273.01 = 28,129.02/x
  3. Step 3: Cross multiply
    51,515.34x = 77,273.01 × 28,129.02
  4. Step 4: Simplify right side
    51,515.34x = 2,173,614,043.75
  5. Step 5: Solve for x
    x = 2,173,614,043.75/51,515.34
  6. Step 6: Final answer
    x = 42,193.53

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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.