Home / 69,028.80-103,543.20-44,145.60

Finding the Fourth Proportional to 69,028.80, 103,543.20 and 44,145.60

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Solution

The fourth proportional to 69,028.80, 103,543.20 and 44,145.60 is: 66,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,028.80 : 103,543.20 = 44,145.60 : x
  2. Step 2: Convert to fraction form
    69,028.80/103,543.20 = 44,145.60/x
  3. Step 3: Cross multiply
    69,028.80x = 103,543.20 × 44,145.60
  4. Step 4: Simplify right side
    69,028.80x = 4,570,976,689.92
  5. Step 5: Solve for x
    x = 4,570,976,689.92/69,028.80
  6. Step 6: Final answer
    x = 66,218.40

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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.