Home / 53,906.16-80,858.70-38,422.20

Finding the Fourth Proportional to 53,906.16, 80,858.70 and 38,422.20

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Solution

The fourth proportional to 53,906.16, 80,858.70 and 38,422.20 is: 57,632.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,906.16 : 80,858.70 = 38,422.20 : x
  2. Step 2: Convert to fraction form
    53,906.16/80,858.70 = 38,422.20/x
  3. Step 3: Cross multiply
    53,906.16x = 80,858.70 × 38,422.20
  4. Step 4: Simplify right side
    53,906.16x = 3,106,769,143.14
  5. Step 5: Solve for x
    x = 3,106,769,143.14/53,906.16
  6. Step 6: Final answer
    x = 57,632.92

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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.