Home / 51,741.35-77,551.28-51,187.31

Finding the Fourth Proportional to 51,741.35, 77,551.28 and 51,187.31

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Solution

The fourth proportional to 51,741.35, 77,551.28 and 51,187.31 is: 76,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,741.35 : 77,551.28 = 51,187.31 : x
  2. Step 2: Convert to fraction form
    51,741.35/77,551.28 = 51,187.31/x
  3. Step 3: Cross multiply
    51,741.35x = 77,551.28 × 51,187.31
  4. Step 4: Simplify right side
    51,741.35x = 3,969,641,154.32
  5. Step 5: Solve for x
    x = 3,969,641,154.32/51,741.35
  6. Step 6: Final answer
    x = 76,720.87

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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.