Home / 76,805.28-115,108.56-39,334.32

Finding the Fourth Proportional to 76,805.28, 115,108.56 and 39,334.32

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Solution

The fourth proportional to 76,805.28, 115,108.56 and 39,334.32 is: 58,950.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,805.28 : 115,108.56 = 39,334.32 : x
  2. Step 2: Convert to fraction form
    76,805.28/115,108.56 = 39,334.32/x
  3. Step 3: Cross multiply
    76,805.28x = 115,108.56 × 39,334.32
  4. Step 4: Simplify right side
    76,805.28x = 4,527,716,933.78
  5. Step 5: Solve for x
    x = 4,527,716,933.78/76,805.28
  6. Step 6: Final answer
    x = 58,950.59

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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.