Home / 76,199.12-114,243.30-31,838.56

Finding the Fourth Proportional to 76,199.12, 114,243.30 and 31,838.56

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Solution

The fourth proportional to 76,199.12, 114,243.30 and 31,838.56 is: 47,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,199.12 : 114,243.30 = 31,838.56 : x
  2. Step 2: Convert to fraction form
    76,199.12/114,243.30 = 31,838.56/x
  3. Step 3: Cross multiply
    76,199.12x = 114,243.30 × 31,838.56
  4. Step 4: Simplify right side
    76,199.12x = 3,637,342,161.65
  5. Step 5: Solve for x
    x = 3,637,342,161.65/76,199.12
  6. Step 6: Final answer
    x = 47,734.70

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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.