Home / 85,588.11-128,332.24-35,608.31

Finding the Fourth Proportional to 85,588.11, 128,332.24 and 35,608.31

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Solution

The fourth proportional to 85,588.11, 128,332.24 and 35,608.31 is: 53,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,588.11 : 128,332.24 = 35,608.31 : x
  2. Step 2: Convert to fraction form
    85,588.11/128,332.24 = 35,608.31/x
  3. Step 3: Cross multiply
    85,588.11x = 128,332.24 × 35,608.31
  4. Step 4: Simplify right side
    85,588.11x = 4,569,694,184.91
  5. Step 5: Solve for x
    x = 4,569,694,184.91/85,588.11
  6. Step 6: Final answer
    x = 53,391.69

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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.