Home / 55,921.52-83,934.12-28,238.96

Finding the Fourth Proportional to 55,921.52, 83,934.12 and 28,238.96

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Solution

The fourth proportional to 55,921.52, 83,934.12 and 28,238.96 is: 42,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,921.52 : 83,934.12 = 28,238.96 : x
  2. Step 2: Convert to fraction form
    55,921.52/83,934.12 = 28,238.96/x
  3. Step 3: Cross multiply
    55,921.52x = 83,934.12 × 28,238.96
  4. Step 4: Simplify right side
    55,921.52x = 2,370,212,257.32
  5. Step 5: Solve for x
    x = 2,370,212,257.32/55,921.52
  6. Step 6: Final answer
    x = 42,384.62

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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.