Home / 76,186.50-114,331.59-45,816.36

Finding the Fourth Proportional to 76,186.50, 114,331.59 and 45,816.36

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Solution

The fourth proportional to 76,186.50, 114,331.59 and 45,816.36 is: 68,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,186.50 : 114,331.59 = 45,816.36 : x
  2. Step 2: Convert to fraction form
    76,186.50/114,331.59 = 45,816.36/x
  3. Step 3: Cross multiply
    76,186.50x = 114,331.59 × 45,816.36
  4. Step 4: Simplify right side
    76,186.50x = 5,238,257,286.81
  5. Step 5: Solve for x
    x = 5,238,257,286.81/76,186.50
  6. Step 6: Final answer
    x = 68,755.72

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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.