Home / 51,701.49-77,535.83-20,109.47

Finding the Fourth Proportional to 51,701.49, 77,535.83 and 20,109.47

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Solution

The fourth proportional to 51,701.49, 77,535.83 and 20,109.47 is: 30,157.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,701.49 : 77,535.83 = 20,109.47 : x
  2. Step 2: Convert to fraction form
    51,701.49/77,535.83 = 20,109.47/x
  3. Step 3: Cross multiply
    51,701.49x = 77,535.83 × 20,109.47
  4. Step 4: Simplify right side
    51,701.49x = 1,559,204,109.90
  5. Step 5: Solve for x
    x = 1,559,204,109.90/51,701.49
  6. Step 6: Final answer
    x = 30,157.82

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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.