Home / 54,700.24-82,054.38-19,640.20

Finding the Fourth Proportional to 54,700.24, 82,054.38 and 19,640.20

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Solution

The fourth proportional to 54,700.24, 82,054.38 and 19,640.20 is: 29,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,700.24 : 82,054.38 = 19,640.20 : x
  2. Step 2: Convert to fraction form
    54,700.24/82,054.38 = 19,640.20/x
  3. Step 3: Cross multiply
    54,700.24x = 82,054.38 × 19,640.20
  4. Step 4: Simplify right side
    54,700.24x = 1,611,564,434.08
  5. Step 5: Solve for x
    x = 1,611,564,434.08/54,700.24
  6. Step 6: Final answer
    x = 29,461.74

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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.