Home / 120,559.28-180,831.62-53,981.52

Finding the Fourth Proportional to 120,559.28, 180,831.62 and 53,981.52

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Solution

The fourth proportional to 120,559.28, 180,831.62 and 53,981.52 is: 80,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,559.28 : 180,831.62 = 53,981.52 : x
  2. Step 2: Convert to fraction form
    120,559.28/180,831.62 = 53,981.52/x
  3. Step 3: Cross multiply
    120,559.28x = 180,831.62 × 53,981.52
  4. Step 4: Simplify right side
    120,559.28x = 9,761,565,441.75
  5. Step 5: Solve for x
    x = 9,761,565,441.75/120,559.28
  6. Step 6: Final answer
    x = 80,969.01

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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.