Home / 76,087.80-114,156.05-31,719.24

Finding the Fourth Proportional to 76,087.80, 114,156.05 and 31,719.24

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Solution

The fourth proportional to 76,087.80, 114,156.05 and 31,719.24 is: 47,589.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,087.80 : 114,156.05 = 31,719.24 : x
  2. Step 2: Convert to fraction form
    76,087.80/114,156.05 = 31,719.24/x
  3. Step 3: Cross multiply
    76,087.80x = 114,156.05 × 31,719.24
  4. Step 4: Simplify right side
    76,087.80x = 3,620,942,988.81
  5. Step 5: Solve for x
    x = 3,620,942,988.81/76,087.80
  6. Step 6: Final answer
    x = 47,589.01

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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.