Home / 45,949.68-63,434.64-30,921.36

Finding the Fourth Proportional to 45,949.68, 63,434.64 and 30,921.36

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Solution

The fourth proportional to 45,949.68, 63,434.64 and 30,921.36 is: 42,687.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,949.68 : 63,434.64 = 30,921.36 : x
  2. Step 2: Convert to fraction form
    45,949.68/63,434.64 = 30,921.36/x
  3. Step 3: Cross multiply
    45,949.68x = 63,434.64 × 30,921.36
  4. Step 4: Simplify right side
    45,949.68x = 1,961,485,339.91
  5. Step 5: Solve for x
    x = 1,961,485,339.91/45,949.68
  6. Step 6: Final answer
    x = 42,687.68

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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.