Home / 43,065.39-64,601.78-11,900.64

Finding the Fourth Proportional to 43,065.39, 64,601.78 and 11,900.64

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Solution

The fourth proportional to 43,065.39, 64,601.78 and 11,900.64 is: 17,851.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,065.39 : 64,601.78 = 11,900.64 : x
  2. Step 2: Convert to fraction form
    43,065.39/64,601.78 = 11,900.64/x
  3. Step 3: Cross multiply
    43,065.39x = 64,601.78 × 11,900.64
  4. Step 4: Simplify right side
    43,065.39x = 768,802,467.64
  5. Step 5: Solve for x
    x = 768,802,467.64/43,065.39
  6. Step 6: Final answer
    x = 17,851.98

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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.