Home / 45,146.40-62,271.10-30,974.64

Finding the Fourth Proportional to 45,146.40, 62,271.10 and 30,974.64

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Solution

The fourth proportional to 45,146.40, 62,271.10 and 30,974.64 is: 42,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,146.40 : 62,271.10 = 30,974.64 : x
  2. Step 2: Convert to fraction form
    45,146.40/62,271.10 = 30,974.64/x
  3. Step 3: Cross multiply
    45,146.40x = 62,271.10 × 30,974.64
  4. Step 4: Simplify right side
    45,146.40x = 1,928,824,904.90
  5. Step 5: Solve for x
    x = 1,928,824,904.90/45,146.40
  6. Step 6: Final answer
    x = 42,723.78

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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.