Home / 84,966.40-127,449.60-45,600.40

Finding the Fourth Proportional to 84,966.40, 127,449.60 and 45,600.40

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Solution

The fourth proportional to 84,966.40, 127,449.60 and 45,600.40 is: 68,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,966.40 : 127,449.60 = 45,600.40 : x
  2. Step 2: Convert to fraction form
    84,966.40/127,449.60 = 45,600.40/x
  3. Step 3: Cross multiply
    84,966.40x = 127,449.60 × 45,600.40
  4. Step 4: Simplify right side
    84,966.40x = 5,811,752,739.84
  5. Step 5: Solve for x
    x = 5,811,752,739.84/84,966.40
  6. Step 6: Final answer
    x = 68,400.60

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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.