Home / 77,063.45-115,660.80-30,349.13

Finding the Fourth Proportional to 77,063.45, 115,660.80 and 30,349.13

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Solution

The fourth proportional to 77,063.45, 115,660.80 and 30,349.13 is: 45,549.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,063.45 : 115,660.80 = 30,349.13 : x
  2. Step 2: Convert to fraction form
    77,063.45/115,660.80 = 30,349.13/x
  3. Step 3: Cross multiply
    77,063.45x = 115,660.80 × 30,349.13
  4. Step 4: Simplify right side
    77,063.45x = 3,510,204,076.80
  5. Step 5: Solve for x
    x = 3,510,204,076.80/77,063.45
  6. Step 6: Final answer
    x = 45,549.53

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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.