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Finding the Fourth Proportional to 54,995.80, 82,493.62 and 19,935.40

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Solution

The fourth proportional to 54,995.80, 82,493.62 and 19,935.40 is: 29,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,995.80 : 82,493.62 = 19,935.40 : x
  2. Step 2: Convert to fraction form
    54,995.80/82,493.62 = 19,935.40/x
  3. Step 3: Cross multiply
    54,995.80x = 82,493.62 × 19,935.40
  4. Step 4: Simplify right side
    54,995.80x = 1,644,543,312.15
  5. Step 5: Solve for x
    x = 1,644,543,312.15/54,995.80
  6. Step 6: Final answer
    x = 29,903.07

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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.