Home / 90,843.16-125,378.60-53,110.12

Finding the Fourth Proportional to 90,843.16, 125,378.60 and 53,110.12

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Solution

The fourth proportional to 90,843.16, 125,378.60 and 53,110.12 is: 73,300.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843.16 : 125,378.60 = 53,110.12 : x
  2. Step 2: Convert to fraction form
    90,843.16/125,378.60 = 53,110.12/x
  3. Step 3: Cross multiply
    90,843.16x = 125,378.60 × 53,110.12
  4. Step 4: Simplify right side
    90,843.16x = 6,658,872,491.43
  5. Step 5: Solve for x
    x = 6,658,872,491.43/90,843.16
  6. Step 6: Final answer
    x = 73,300.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.