Home / 55,390.92-76,439.07-30,240.42

Finding the Fourth Proportional to 55,390.92, 76,439.07 and 30,240.42

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Solution

The fourth proportional to 55,390.92, 76,439.07 and 30,240.42 is: 41,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,390.92 : 76,439.07 = 30,240.42 : x
  2. Step 2: Convert to fraction form
    55,390.92/76,439.07 = 30,240.42/x
  3. Step 3: Cross multiply
    55,390.92x = 76,439.07 × 30,240.42
  4. Step 4: Simplify right side
    55,390.92x = 2,311,549,581.21
  5. Step 5: Solve for x
    x = 2,311,549,581.21/55,390.92
  6. Step 6: Final answer
    x = 41,731.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.