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Finding the Fourth Proportional to 50,005.80, 74,922.30 and 42,229.80

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Solution

The fourth proportional to 50,005.80, 74,922.30 and 42,229.80 is: 63,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,005.80 : 74,922.30 = 42,229.80 : x
  2. Step 2: Convert to fraction form
    50,005.80/74,922.30 = 42,229.80/x
  3. Step 3: Cross multiply
    50,005.80x = 74,922.30 × 42,229.80
  4. Step 4: Simplify right side
    50,005.80x = 3,163,953,744.54
  5. Step 5: Solve for x
    x = 3,163,953,744.54/50,005.80
  6. Step 6: Final answer
    x = 63,271.74

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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.