Home / 76,172.40-114,269.22-31,788.99

Finding the Fourth Proportional to 76,172.40, 114,269.22 and 31,788.99

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Solution

The fourth proportional to 76,172.40, 114,269.22 and 31,788.99 is: 47,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,172.40 : 114,269.22 = 31,788.99 : x
  2. Step 2: Convert to fraction form
    76,172.40/114,269.22 = 31,788.99/x
  3. Step 3: Cross multiply
    76,172.40x = 114,269.22 × 31,788.99
  4. Step 4: Simplify right side
    76,172.40x = 3,632,503,091.89
  5. Step 5: Solve for x
    x = 3,632,503,091.89/76,172.40
  6. Step 6: Final answer
    x = 47,687.92

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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.