Home / 77,820.40-116,730.60-25,229.20

Finding the Fourth Proportional to 77,820.40, 116,730.60 and 25,229.20

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Solution

The fourth proportional to 77,820.40, 116,730.60 and 25,229.20 is: 37,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,820.40 : 116,730.60 = 25,229.20 : x
  2. Step 2: Convert to fraction form
    77,820.40/116,730.60 = 25,229.20/x
  3. Step 3: Cross multiply
    77,820.40x = 116,730.60 × 25,229.20
  4. Step 4: Simplify right side
    77,820.40x = 2,945,019,653.52
  5. Step 5: Solve for x
    x = 2,945,019,653.52/77,820.40
  6. Step 6: Final answer
    x = 37,843.80

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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.