Home / 62,755.72-94,145.20-20,638.12

Finding the Fourth Proportional to 62,755.72, 94,145.20 and 20,638.12

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Solution

The fourth proportional to 62,755.72, 94,145.20 and 20,638.12 is: 30,961.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,755.72 : 94,145.20 = 20,638.12 : x
  2. Step 2: Convert to fraction form
    62,755.72/94,145.20 = 20,638.12/x
  3. Step 3: Cross multiply
    62,755.72x = 94,145.20 × 20,638.12
  4. Step 4: Simplify right side
    62,755.72x = 1,942,979,935.02
  5. Step 5: Solve for x
    x = 1,942,979,935.02/62,755.72
  6. Step 6: Final answer
    x = 30,961.00

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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.