Home / 54,172.98-81,244.91-19,108.02

Finding the Fourth Proportional to 54,172.98, 81,244.91 and 19,108.02

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Solution

The fourth proportional to 54,172.98, 81,244.91 and 19,108.02 is: 28,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,172.98 : 81,244.91 = 19,108.02 : x
  2. Step 2: Convert to fraction form
    54,172.98/81,244.91 = 19,108.02/x
  3. Step 3: Cross multiply
    54,172.98x = 81,244.91 × 19,108.02
  4. Step 4: Simplify right side
    54,172.98x = 1,552,429,365.18
  5. Step 5: Solve for x
    x = 1,552,429,365.18/54,172.98
  6. Step 6: Final answer
    x = 28,656.89

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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.