Home / 48,678.20-67,190.28-28,539.44

Finding the Fourth Proportional to 48,678.20, 67,190.28 and 28,539.44

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Solution

The fourth proportional to 48,678.20, 67,190.28 and 28,539.44 is: 39,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.20 : 67,190.28 = 28,539.44 : x
  2. Step 2: Convert to fraction form
    48,678.20/67,190.28 = 28,539.44/x
  3. Step 3: Cross multiply
    48,678.20x = 67,190.28 × 28,539.44
  4. Step 4: Simplify right side
    48,678.20x = 1,917,572,964.64
  5. Step 5: Solve for x
    x = 1,917,572,964.64/48,678.20
  6. Step 6: Final answer
    x = 39,392.85

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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.