Home / 51,439.76-77,145.32-18,155.52

Finding the Fourth Proportional to 51,439.76, 77,145.32 and 18,155.52

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Solution

The fourth proportional to 51,439.76, 77,145.32 and 18,155.52 is: 27,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,439.76 : 77,145.32 = 18,155.52 : x
  2. Step 2: Convert to fraction form
    51,439.76/77,145.32 = 18,155.52/x
  3. Step 3: Cross multiply
    51,439.76x = 77,145.32 × 18,155.52
  4. Step 4: Simplify right side
    51,439.76x = 1,400,613,400.17
  5. Step 5: Solve for x
    x = 1,400,613,400.17/51,439.76
  6. Step 6: Final answer
    x = 27,228.23

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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.