Home / 57,073.20-85,609.92-30,790.32

Finding the Fourth Proportional to 57,073.20, 85,609.92 and 30,790.32

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Solution

The fourth proportional to 57,073.20, 85,609.92 and 30,790.32 is: 46,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,073.20 : 85,609.92 = 30,790.32 : x
  2. Step 2: Convert to fraction form
    57,073.20/85,609.92 = 30,790.32/x
  3. Step 3: Cross multiply
    57,073.20x = 85,609.92 × 30,790.32
  4. Step 4: Simplify right side
    57,073.20x = 2,635,956,831.97
  5. Step 5: Solve for x
    x = 2,635,956,831.97/57,073.20
  6. Step 6: Final answer
    x = 46,185.54

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1.5x scale

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.