Home / 76,782.92-115,101.58-26,830.55

Finding the Fourth Proportional to 76,782.92, 115,101.58 and 26,830.55

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Solution

The fourth proportional to 76,782.92, 115,101.58 and 26,830.55 is: 40,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,782.92 : 115,101.58 = 26,830.55 : x
  2. Step 2: Convert to fraction form
    76,782.92/115,101.58 = 26,830.55/x
  3. Step 3: Cross multiply
    76,782.92x = 115,101.58 × 26,830.55
  4. Step 4: Simplify right side
    76,782.92x = 3,088,238,697.27
  5. Step 5: Solve for x
    x = 3,088,238,697.27/76,782.92
  6. Step 6: Final answer
    x = 40,220.39

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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.