Home / 48,867.21-67,421.30-28,717.65

Finding the Fourth Proportional to 48,867.21, 67,421.30 and 28,717.65

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Solution

The fourth proportional to 48,867.21, 67,421.30 and 28,717.65 is: 39,621.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,867.21 : 67,421.30 = 28,717.65 : x
  2. Step 2: Convert to fraction form
    48,867.21/67,421.30 = 28,717.65/x
  3. Step 3: Cross multiply
    48,867.21x = 67,421.30 × 28,717.65
  4. Step 4: Simplify right side
    48,867.21x = 1,936,181,152.36
  5. Step 5: Solve for x
    x = 1,936,181,152.36/48,867.21
  6. Step 6: Final answer
    x = 39,621.27

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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.