Home / 51,357.92-77,003.68-20,196.32

Finding the Fourth Proportional to 51,357.92, 77,003.68 and 20,196.32

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Solution

The fourth proportional to 51,357.92, 77,003.68 and 20,196.32 is: 30,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,357.92 : 77,003.68 = 20,196.32 : x
  2. Step 2: Convert to fraction form
    51,357.92/77,003.68 = 20,196.32/x
  3. Step 3: Cross multiply
    51,357.92x = 77,003.68 × 20,196.32
  4. Step 4: Simplify right side
    51,357.92x = 1,555,190,962.46
  5. Step 5: Solve for x
    x = 1,555,190,962.46/51,357.92
  6. Step 6: Final answer
    x = 30,281.42

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1.5x scale

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.