Home / 51,698.08-77,591.28-20,555.20

Finding the Fourth Proportional to 51,698.08, 77,591.28 and 20,555.20

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Solution

The fourth proportional to 51,698.08, 77,591.28 and 20,555.20 is: 30,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,698.08 : 77,591.28 = 20,555.20 : x
  2. Step 2: Convert to fraction form
    51,698.08/77,591.28 = 20,555.20/x
  3. Step 3: Cross multiply
    51,698.08x = 77,591.28 × 20,555.20
  4. Step 4: Simplify right side
    51,698.08x = 1,594,904,278.66
  5. Step 5: Solve for x
    x = 1,594,904,278.66/51,698.08
  6. Step 6: Final answer
    x = 30,850.36

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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.