Home / 56,173.53-84,232.07-18,720.48

Finding the Fourth Proportional to 56,173.53, 84,232.07 and 18,720.48

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Solution

The fourth proportional to 56,173.53, 84,232.07 and 18,720.48 is: 28,071.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,173.53 : 84,232.07 = 18,720.48 : x
  2. Step 2: Convert to fraction form
    56,173.53/84,232.07 = 18,720.48/x
  3. Step 3: Cross multiply
    56,173.53x = 84,232.07 × 18,720.48
  4. Step 4: Simplify right side
    56,173.53x = 1,576,864,477.61
  5. Step 5: Solve for x
    x = 1,576,864,477.61/56,173.53
  6. Step 6: Final answer
    x = 28,071.31

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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.