Home / 51,909.28-77,765.46-30,804.72

Finding the Fourth Proportional to 51,909.28, 77,765.46 and 30,804.72

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Solution

The fourth proportional to 51,909.28, 77,765.46 and 30,804.72 is: 46,148.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,909.28 : 77,765.46 = 30,804.72 : x
  2. Step 2: Convert to fraction form
    51,909.28/77,765.46 = 30,804.72/x
  3. Step 3: Cross multiply
    51,909.28x = 77,765.46 × 30,804.72
  4. Step 4: Simplify right side
    51,909.28x = 2,395,543,220.97
  5. Step 5: Solve for x
    x = 2,395,543,220.97/51,909.28
  6. Step 6: Final answer
    x = 46,148.65

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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.