Home / 51,964.81-77,977.97-21,977.36

Finding the Fourth Proportional to 51,964.81, 77,977.97 and 21,977.36

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Solution

The fourth proportional to 51,964.81, 77,977.97 and 21,977.36 is: 32,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,964.81 : 77,977.97 = 21,977.36 : x
  2. Step 2: Convert to fraction form
    51,964.81/77,977.97 = 21,977.36/x
  3. Step 3: Cross multiply
    51,964.81x = 77,977.97 × 21,977.36
  4. Step 4: Simplify right side
    51,964.81x = 1,713,749,917.44
  5. Step 5: Solve for x
    x = 1,713,749,917.44/51,964.81
  6. Step 6: Final answer
    x = 32,979.05

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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.