Home / 76,014.40-114,021.60-51,131.20

Finding the Fourth Proportional to 76,014.40, 114,021.60 and 51,131.20

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Solution

The fourth proportional to 76,014.40, 114,021.60 and 51,131.20 is: 76,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,014.40 : 114,021.60 = 51,131.20 : x
  2. Step 2: Convert to fraction form
    76,014.40/114,021.60 = 51,131.20/x
  3. Step 3: Cross multiply
    76,014.40x = 114,021.60 × 51,131.20
  4. Step 4: Simplify right side
    76,014.40x = 5,830,061,233.92
  5. Step 5: Solve for x
    x = 5,830,061,233.92/76,014.40
  6. Step 6: Final answer
    x = 76,696.80

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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.