Home / 85,916.99-128,833.34-35,306.85

Finding the Fourth Proportional to 85,916.99, 128,833.34 and 35,306.85

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Solution

The fourth proportional to 85,916.99, 128,833.34 and 35,306.85 is: 52,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,916.99 : 128,833.34 = 35,306.85 : x
  2. Step 2: Convert to fraction form
    85,916.99/128,833.34 = 35,306.85/x
  3. Step 3: Cross multiply
    85,916.99x = 128,833.34 × 35,306.85
  4. Step 4: Simplify right side
    85,916.99x = 4,548,699,233.84
  5. Step 5: Solve for x
    x = 4,548,699,233.84/85,916.99
  6. Step 6: Final answer
    x = 52,942.96

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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.