Home / 92,858.40-139,093.20-51,256.80

Finding the Fourth Proportional to 92,858.40, 139,093.20 and 51,256.80

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Solution

The fourth proportional to 92,858.40, 139,093.20 and 51,256.80 is: 76,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,858.40 : 139,093.20 = 51,256.80 : x
  2. Step 2: Convert to fraction form
    92,858.40/139,093.20 = 51,256.80/x
  3. Step 3: Cross multiply
    92,858.40x = 139,093.20 × 51,256.80
  4. Step 4: Simplify right side
    92,858.40x = 7,129,472,333.76
  5. Step 5: Solve for x
    x = 7,129,472,333.76/92,858.40
  6. Step 6: Final answer
    x = 76,777.89

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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.