Home / 86,635.80-129,953.60-32,610.57

Finding the Fourth Proportional to 86,635.80, 129,953.60 and 32,610.57

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Solution

The fourth proportional to 86,635.80, 129,953.60 and 32,610.57 is: 48,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,635.80 : 129,953.60 = 32,610.57 : x
  2. Step 2: Convert to fraction form
    86,635.80/129,953.60 = 32,610.57/x
  3. Step 3: Cross multiply
    86,635.80x = 129,953.60 × 32,610.57
  4. Step 4: Simplify right side
    86,635.80x = 4,237,860,969.55
  5. Step 5: Solve for x
    x = 4,237,860,969.55/86,635.80
  6. Step 6: Final answer
    x = 48,915.82

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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.