Home / 76,513.75-114,777.24-21,109.75

Finding the Fourth Proportional to 76,513.75, 114,777.24 and 21,109.75

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Solution

The fourth proportional to 76,513.75, 114,777.24 and 21,109.75 is: 31,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,513.75 : 114,777.24 = 21,109.75 : x
  2. Step 2: Convert to fraction form
    76,513.75/114,777.24 = 21,109.75/x
  3. Step 3: Cross multiply
    76,513.75x = 114,777.24 × 21,109.75
  4. Step 4: Simplify right side
    76,513.75x = 2,422,918,842.09
  5. Step 5: Solve for x
    x = 2,422,918,842.09/76,513.75
  6. Step 6: Final answer
    x = 31,666.45

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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.