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Finding the Fourth Proportional to 50,203.90, 69,269.50 and 28,400.68

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Solution

The fourth proportional to 50,203.90, 69,269.50 and 28,400.68 is: 39,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,203.90 : 69,269.50 = 28,400.68 : x
  2. Step 2: Convert to fraction form
    50,203.90/69,269.50 = 28,400.68/x
  3. Step 3: Cross multiply
    50,203.90x = 69,269.50 × 28,400.68
  4. Step 4: Simplify right side
    50,203.90x = 1,967,300,903.26
  5. Step 5: Solve for x
    x = 1,967,300,903.26/50,203.90
  6. Step 6: Final answer
    x = 39,186.22

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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.