Home / 56,200.20-84,300.30-28,206.60

Finding the Fourth Proportional to 56,200.20, 84,300.30 and 28,206.60

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Solution

The fourth proportional to 56,200.20, 84,300.30 and 28,206.60 is: 42,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,200.20 : 84,300.30 = 28,206.60 : x
  2. Step 2: Convert to fraction form
    56,200.20/84,300.30 = 28,206.60/x
  3. Step 3: Cross multiply
    56,200.20x = 84,300.30 × 28,206.60
  4. Step 4: Simplify right side
    56,200.20x = 2,377,824,841.98
  5. Step 5: Solve for x
    x = 2,377,824,841.98/56,200.20
  6. Step 6: Final answer
    x = 42,309.90

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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.