Home / 53,720.27-80,530.31-18,156.72

Finding the Fourth Proportional to 53,720.27, 80,530.31 and 18,156.72

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Solution

The fourth proportional to 53,720.27, 80,530.31 and 18,156.72 is: 27,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,720.27 : 80,530.31 = 18,156.72 : x
  2. Step 2: Convert to fraction form
    53,720.27/80,530.31 = 18,156.72/x
  3. Step 3: Cross multiply
    53,720.27x = 80,530.31 × 18,156.72
  4. Step 4: Simplify right side
    53,720.27x = 1,462,166,199.40
  5. Step 5: Solve for x
    x = 1,462,166,199.40/53,720.27
  6. Step 6: Final answer
    x = 27,218.15

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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.