Home / 85,669.38-128,550.55-35,753.83

Finding the Fourth Proportional to 85,669.38, 128,550.55 and 35,753.83

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Solution

The fourth proportional to 85,669.38, 128,550.55 and 35,753.83 is: 53,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669.38 : 128,550.55 = 35,753.83 : x
  2. Step 2: Convert to fraction form
    85,669.38/128,550.55 = 35,753.83/x
  3. Step 3: Cross multiply
    85,669.38x = 128,550.55 × 35,753.83
  4. Step 4: Simplify right side
    85,669.38x = 4,596,174,511.11
  5. Step 5: Solve for x
    x = 4,596,174,511.11/85,669.38
  6. Step 6: Final answer
    x = 53,650.14

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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.