Home / 80,575.08-120,831.54-30,628.92

Finding the Fourth Proportional to 80,575.08, 120,831.54 and 30,628.92

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Solution

The fourth proportional to 80,575.08, 120,831.54 and 30,628.92 is: 45,931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,575.08 : 120,831.54 = 30,628.92 : x
  2. Step 2: Convert to fraction form
    80,575.08/120,831.54 = 30,628.92/x
  3. Step 3: Cross multiply
    80,575.08x = 120,831.54 × 30,628.92
  4. Step 4: Simplify right side
    80,575.08x = 3,700,939,572.14
  5. Step 5: Solve for x
    x = 3,700,939,572.14/80,575.08
  6. Step 6: Final answer
    x = 45,931.57

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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.