Home / 83,627.76-125,441.04-20,448.12

Finding the Fourth Proportional to 83,627.76, 125,441.04 and 20,448.12

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Solution

The fourth proportional to 83,627.76, 125,441.04 and 20,448.12 is: 30,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,627.76 : 125,441.04 = 20,448.12 : x
  2. Step 2: Convert to fraction form
    83,627.76/125,441.04 = 20,448.12/x
  3. Step 3: Cross multiply
    83,627.76x = 125,441.04 × 20,448.12
  4. Step 4: Simplify right side
    83,627.76x = 2,565,033,438.84
  5. Step 5: Solve for x
    x = 2,565,033,438.84/83,627.76
  6. Step 6: Final answer
    x = 30,672.03

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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.