Home / 53,200.20-79,703.10-43,285.80

Finding the Fourth Proportional to 53,200.20, 79,703.10 and 43,285.80

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Solution

The fourth proportional to 53,200.20, 79,703.10 and 43,285.80 is: 64,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,200.20 : 79,703.10 = 43,285.80 : x
  2. Step 2: Convert to fraction form
    53,200.20/79,703.10 = 43,285.80/x
  3. Step 3: Cross multiply
    53,200.20x = 79,703.10 × 43,285.80
  4. Step 4: Simplify right side
    53,200.20x = 3,450,012,445.98
  5. Step 5: Solve for x
    x = 3,450,012,445.98/53,200.20
  6. Step 6: Final answer
    x = 64,849.61

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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.