Home / 67,628.40-101,387.64-28,214.88

Finding the Fourth Proportional to 67,628.40, 101,387.64 and 28,214.88

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Solution

The fourth proportional to 67,628.40, 101,387.64 and 28,214.88 is: 42,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,628.40 : 101,387.64 = 28,214.88 : x
  2. Step 2: Convert to fraction form
    67,628.40/101,387.64 = 28,214.88/x
  3. Step 3: Cross multiply
    67,628.40x = 101,387.64 × 28,214.88
  4. Step 4: Simplify right side
    67,628.40x = 2,860,640,096.08
  5. Step 5: Solve for x
    x = 2,860,640,096.08/67,628.40
  6. Step 6: Final answer
    x = 42,299.39

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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.