Home / 60,072.12-90,112.98-18,519

Finding the Fourth Proportional to 60,072.12, 90,112.98 and 18,519

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Solution

The fourth proportional to 60,072.12, 90,112.98 and 18,519 is: 27,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,072.12 : 90,112.98 = 18,519 : x
  2. Step 2: Convert to fraction form
    60,072.12/90,112.98 = 18,519/x
  3. Step 3: Cross multiply
    60,072.12x = 90,112.98 × 18,519
  4. Step 4: Simplify right side
    60,072.12x = 1,668,802,276.62
  5. Step 5: Solve for x
    x = 1,668,802,276.62/60,072.12
  6. Step 6: Final answer
    x = 27,779.98

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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.