Home / 54,478.68-81,726.24-19,415.64

Finding the Fourth Proportional to 54,478.68, 81,726.24 and 19,415.64

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Solution

The fourth proportional to 54,478.68, 81,726.24 and 19,415.64 is: 29,126.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,478.68 : 81,726.24 = 19,415.64 : x
  2. Step 2: Convert to fraction form
    54,478.68/81,726.24 = 19,415.64/x
  3. Step 3: Cross multiply
    54,478.68x = 81,726.24 × 19,415.64
  4. Step 4: Simplify right side
    54,478.68x = 1,586,767,254.39
  5. Step 5: Solve for x
    x = 1,586,767,254.39/54,478.68
  6. Step 6: Final answer
    x = 29,126.39

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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.