Home / 76,189.28-114,393-46,665.68

Finding the Fourth Proportional to 76,189.28, 114,393 and 46,665.68

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Solution

The fourth proportional to 76,189.28, 114,393 and 46,665.68 is: 70,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,189.28 : 114,393 = 46,665.68 : x
  2. Step 2: Convert to fraction form
    76,189.28/114,393 = 46,665.68/x
  3. Step 3: Cross multiply
    76,189.28x = 114,393 × 46,665.68
  4. Step 4: Simplify right side
    76,189.28x = 5,338,227,132.24
  5. Step 5: Solve for x
    x = 5,338,227,132.24/76,189.28
  6. Step 6: Final answer
    x = 70,065.33

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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.