Home / 49,989.59-68,985.68-28,768.86

Finding the Fourth Proportional to 49,989.59, 68,985.68 and 28,768.86

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Solution

The fourth proportional to 49,989.59, 68,985.68 and 28,768.86 is: 39,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,989.59 : 68,985.68 = 28,768.86 : x
  2. Step 2: Convert to fraction form
    49,989.59/68,985.68 = 28,768.86/x
  3. Step 3: Cross multiply
    49,989.59x = 68,985.68 × 28,768.86
  4. Step 4: Simplify right side
    49,989.59x = 1,984,639,226.08
  5. Step 5: Solve for x
    x = 1,984,639,226.08/49,989.59
  6. Step 6: Final answer
    x = 39,701.05

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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.