Home / 53,432.80-80,156.40-18,383.20

Finding the Fourth Proportional to 53,432.80, 80,156.40 and 18,383.20

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Solution

The fourth proportional to 53,432.80, 80,156.40 and 18,383.20 is: 27,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,432.80 : 80,156.40 = 18,383.20 : x
  2. Step 2: Convert to fraction form
    53,432.80/80,156.40 = 18,383.20/x
  3. Step 3: Cross multiply
    53,432.80x = 80,156.40 × 18,383.20
  4. Step 4: Simplify right side
    53,432.80x = 1,473,531,132.48
  5. Step 5: Solve for x
    x = 1,473,531,132.48/53,432.80
  6. Step 6: Final answer
    x = 27,577.28

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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.