Home / 76,188.74-114,301.35-31,790.79

Finding the Fourth Proportional to 76,188.74, 114,301.35 and 31,790.79

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Solution

The fourth proportional to 76,188.74, 114,301.35 and 31,790.79 is: 47,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,188.74 : 114,301.35 = 31,790.79 : x
  2. Step 2: Convert to fraction form
    76,188.74/114,301.35 = 31,790.79/x
  3. Step 3: Cross multiply
    76,188.74x = 114,301.35 × 31,790.79
  4. Step 4: Simplify right side
    76,188.74x = 3,633,730,214.57
  5. Step 5: Solve for x
    x = 3,633,730,214.57/76,188.74
  6. Step 6: Final answer
    x = 47,693.80

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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.