Home / 85,793.07-128,658.02-29,618.76

Finding the Fourth Proportional to 85,793.07, 128,658.02 and 29,618.76

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Solution

The fourth proportional to 85,793.07, 128,658.02 and 29,618.76 is: 44,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,793.07 : 128,658.02 = 29,618.76 : x
  2. Step 2: Convert to fraction form
    85,793.07/128,658.02 = 29,618.76/x
  3. Step 3: Cross multiply
    85,793.07x = 128,658.02 × 29,618.76
  4. Step 4: Simplify right side
    85,793.07x = 3,810,691,517.43
  5. Step 5: Solve for x
    x = 3,810,691,517.43/85,793.07
  6. Step 6: Final answer
    x = 44,417.24

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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.