Home / 43,080.50-64,620.77-13,500.65

Finding the Fourth Proportional to 43,080.50, 64,620.77 and 13,500.65

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Solution

The fourth proportional to 43,080.50, 64,620.77 and 13,500.65 is: 20,250.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,080.50 : 64,620.77 = 13,500.65 : x
  2. Step 2: Convert to fraction form
    43,080.50/64,620.77 = 13,500.65/x
  3. Step 3: Cross multiply
    43,080.50x = 64,620.77 × 13,500.65
  4. Step 4: Simplify right side
    43,080.50x = 872,422,236.95
  5. Step 5: Solve for x
    x = 872,422,236.95/43,080.50
  6. Step 6: Final answer
    x = 20,250.98

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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.