Home / 42,775.14-64,163.58-13,193.01

Finding the Fourth Proportional to 42,775.14, 64,163.58 and 13,193.01

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Solution

The fourth proportional to 42,775.14, 64,163.58 and 13,193.01 is: 19,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,775.14 : 64,163.58 = 13,193.01 : x
  2. Step 2: Convert to fraction form
    42,775.14/64,163.58 = 13,193.01/x
  3. Step 3: Cross multiply
    42,775.14x = 64,163.58 × 13,193.01
  4. Step 4: Simplify right side
    42,775.14x = 846,510,752.58
  5. Step 5: Solve for x
    x = 846,510,752.58/42,775.14
  6. Step 6: Final answer
    x = 19,789.78

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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.