Home / 50,028.80-69,041.28-28,812.32

Finding the Fourth Proportional to 50,028.80, 69,041.28 and 28,812.32

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Solution

The fourth proportional to 50,028.80, 69,041.28 and 28,812.32 is: 39,761.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,028.80 : 69,041.28 = 28,812.32 : x
  2. Step 2: Convert to fraction form
    50,028.80/69,041.28 = 28,812.32/x
  3. Step 3: Cross multiply
    50,028.80x = 69,041.28 × 28,812.32
  4. Step 4: Simplify right side
    50,028.80x = 1,989,239,452.57
  5. Step 5: Solve for x
    x = 1,989,239,452.57/50,028.80
  6. Step 6: Final answer
    x = 39,761.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.