Home / 43,137.12-64,712.22-13,552.18

Finding the Fourth Proportional to 43,137.12, 64,712.22 and 13,552.18

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Solution

The fourth proportional to 43,137.12, 64,712.22 and 13,552.18 is: 20,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,137.12 : 64,712.22 = 13,552.18 : x
  2. Step 2: Convert to fraction form
    43,137.12/64,712.22 = 13,552.18/x
  3. Step 3: Cross multiply
    43,137.12x = 64,712.22 × 13,552.18
  4. Step 4: Simplify right side
    43,137.12x = 876,991,441.04
  5. Step 5: Solve for x
    x = 876,991,441.04/43,137.12
  6. Step 6: Final answer
    x = 20,330.32

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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.