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Finding the Fourth Proportional to 50,474.80, 69,649.20 and 28,963.45

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Solution

The fourth proportional to 50,474.80, 69,649.20 and 28,963.45 is: 39,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,474.80 : 69,649.20 = 28,963.45 : x
  2. Step 2: Convert to fraction form
    50,474.80/69,649.20 = 28,963.45/x
  3. Step 3: Cross multiply
    50,474.80x = 69,649.20 × 28,963.45
  4. Step 4: Simplify right side
    50,474.80x = 2,017,281,121.74
  5. Step 5: Solve for x
    x = 2,017,281,121.74/50,474.80
  6. Step 6: Final answer
    x = 39,966.10

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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.