Home / 84,863.12-127,100.77-40,520.93

Finding the Fourth Proportional to 84,863.12, 127,100.77 and 40,520.93

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Solution

The fourth proportional to 84,863.12, 127,100.77 and 40,520.93 is: 60,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,863.12 : 127,100.77 = 40,520.93 : x
  2. Step 2: Convert to fraction form
    84,863.12/127,100.77 = 40,520.93/x
  3. Step 3: Cross multiply
    84,863.12x = 127,100.77 × 40,520.93
  4. Step 4: Simplify right side
    84,863.12x = 5,150,240,667.31
  5. Step 5: Solve for x
    x = 5,150,240,667.31/84,863.12
  6. Step 6: Final answer
    x = 60,688.80

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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.