Home / 54,531.20-81,602.40-37,812.80

Finding the Fourth Proportional to 54,531.20, 81,602.40 and 37,812.80

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Solution

The fourth proportional to 54,531.20, 81,602.40 and 37,812.80 is: 56,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,531.20 : 81,602.40 = 37,812.80 : x
  2. Step 2: Convert to fraction form
    54,531.20/81,602.40 = 37,812.80/x
  3. Step 3: Cross multiply
    54,531.20x = 81,602.40 × 37,812.80
  4. Step 4: Simplify right side
    54,531.20x = 3,085,615,230.72
  5. Step 5: Solve for x
    x = 3,085,615,230.72/54,531.20
  6. Step 6: Final answer
    x = 56,584.40

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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.