Home / 85,364.20-128,035.06-26,194.92

Finding the Fourth Proportional to 85,364.20, 128,035.06 and 26,194.92

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Solution

The fourth proportional to 85,364.20, 128,035.06 and 26,194.92 is: 39,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,364.20 : 128,035.06 = 26,194.92 : x
  2. Step 2: Convert to fraction form
    85,364.20/128,035.06 = 26,194.92/x
  3. Step 3: Cross multiply
    85,364.20x = 128,035.06 × 26,194.92
  4. Step 4: Simplify right side
    85,364.20x = 3,353,868,153.90
  5. Step 5: Solve for x
    x = 3,353,868,153.90/85,364.20
  6. Step 6: Final answer
    x = 39,288.93

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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.