Home / 76,886.60-115,416.30-59,433.80

Finding the Fourth Proportional to 76,886.60, 115,416.30 and 59,433.80

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Solution

The fourth proportional to 76,886.60, 115,416.30 and 59,433.80 is: 89,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,886.60 : 115,416.30 = 59,433.80 : x
  2. Step 2: Convert to fraction form
    76,886.60/115,416.30 = 59,433.80/x
  3. Step 3: Cross multiply
    76,886.60x = 115,416.30 × 59,433.80
  4. Step 4: Simplify right side
    76,886.60x = 6,859,629,290.94
  5. Step 5: Solve for x
    x = 6,859,629,290.94/76,886.60
  6. Step 6: Final answer
    x = 89,217.49

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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.