Home / 45,947.68-63,431.88-30,919.36

Finding the Fourth Proportional to 45,947.68, 63,431.88 and 30,919.36

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Solution

The fourth proportional to 45,947.68, 63,431.88 and 30,919.36 is: 42,684.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,947.68 : 63,431.88 = 30,919.36 : x
  2. Step 2: Convert to fraction form
    45,947.68/63,431.88 = 30,919.36/x
  3. Step 3: Cross multiply
    45,947.68x = 63,431.88 × 30,919.36
  4. Step 4: Simplify right side
    45,947.68x = 1,961,273,133.20
  5. Step 5: Solve for x
    x = 1,961,273,133.20/45,947.68
  6. Step 6: Final answer
    x = 42,684.92

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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.