Home / 85,363.20-128,033.56-26,193.92

Finding the Fourth Proportional to 85,363.20, 128,033.56 and 26,193.92

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Solution

The fourth proportional to 85,363.20, 128,033.56 and 26,193.92 is: 39,287.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,363.20 : 128,033.56 = 26,193.92 : x
  2. Step 2: Convert to fraction form
    85,363.20/128,033.56 = 26,193.92/x
  3. Step 3: Cross multiply
    85,363.20x = 128,033.56 × 26,193.92
  4. Step 4: Simplify right side
    85,363.20x = 3,353,700,827.96
  5. Step 5: Solve for x
    x = 3,353,700,827.96/85,363.20
  6. Step 6: Final answer
    x = 39,287.43

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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.