Home / 56,573.62-84,871.38-19,139.79

Finding the Fourth Proportional to 56,573.62, 84,871.38 and 19,139.79

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Solution

The fourth proportional to 56,573.62, 84,871.38 and 19,139.79 is: 28,713.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,573.62 : 84,871.38 = 19,139.79 : x
  2. Step 2: Convert to fraction form
    56,573.62/84,871.38 = 19,139.79/x
  3. Step 3: Cross multiply
    56,573.62x = 84,871.38 × 19,139.79
  4. Step 4: Simplify right side
    56,573.62x = 1,624,420,390.21
  5. Step 5: Solve for x
    x = 1,624,420,390.21/56,573.62
  6. Step 6: Final answer
    x = 28,713.39

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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.