Home / 76,028.40-114,042.60-51,145.20

Finding the Fourth Proportional to 76,028.40, 114,042.60 and 51,145.20

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Solution

The fourth proportional to 76,028.40, 114,042.60 and 51,145.20 is: 76,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,028.40 : 114,042.60 = 51,145.20 : x
  2. Step 2: Convert to fraction form
    76,028.40/114,042.60 = 51,145.20/x
  3. Step 3: Cross multiply
    76,028.40x = 114,042.60 × 51,145.20
  4. Step 4: Simplify right side
    76,028.40x = 5,832,731,585.52
  5. Step 5: Solve for x
    x = 5,832,731,585.52/76,028.40
  6. Step 6: Final answer
    x = 76,717.80

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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.