Home / 53,619.60-80,350.20-38,859.60

Finding the Fourth Proportional to 53,619.60, 80,350.20 and 38,859.60

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Solution

The fourth proportional to 53,619.60, 80,350.20 and 38,859.60 is: 58,232.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,619.60 : 80,350.20 = 38,859.60 : x
  2. Step 2: Convert to fraction form
    53,619.60/80,350.20 = 38,859.60/x
  3. Step 3: Cross multiply
    53,619.60x = 80,350.20 × 38,859.60
  4. Step 4: Simplify right side
    53,619.60x = 3,122,376,631.92
  5. Step 5: Solve for x
    x = 3,122,376,631.92/53,619.60
  6. Step 6: Final answer
    x = 58,232.00

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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.