Home / 76,174.15-114,271.85-31,790.74

Finding the Fourth Proportional to 76,174.15, 114,271.85 and 31,790.74

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Solution

The fourth proportional to 76,174.15, 114,271.85 and 31,790.74 is: 47,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,174.15 : 114,271.85 = 31,790.74 : x
  2. Step 2: Convert to fraction form
    76,174.15/114,271.85 = 31,790.74/x
  3. Step 3: Cross multiply
    76,174.15x = 114,271.85 × 31,790.74
  4. Step 4: Simplify right side
    76,174.15x = 3,632,786,672.67
  5. Step 5: Solve for x
    x = 3,632,786,672.67/76,174.15
  6. Step 6: Final answer
    x = 47,690.54

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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.