Home / 51,067.28-70,479.36-30,924.20

Finding the Fourth Proportional to 51,067.28, 70,479.36 and 30,924.20

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Solution

The fourth proportional to 51,067.28, 70,479.36 and 30,924.20 is: 42,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,067.28 : 70,479.36 = 30,924.20 : x
  2. Step 2: Convert to fraction form
    51,067.28/70,479.36 = 30,924.20/x
  3. Step 3: Cross multiply
    51,067.28x = 70,479.36 × 30,924.20
  4. Step 4: Simplify right side
    51,067.28x = 2,179,517,824.51
  5. Step 5: Solve for x
    x = 2,179,517,824.51/51,067.28
  6. Step 6: Final answer
    x = 42,679.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.