Home / 56,418.99-84,636.63-30,109.38

Finding the Fourth Proportional to 56,418.99, 84,636.63 and 30,109.38

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Solution

The fourth proportional to 56,418.99, 84,636.63 and 30,109.38 is: 45,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,418.99 : 84,636.63 = 30,109.38 : x
  2. Step 2: Convert to fraction form
    56,418.99/84,636.63 = 30,109.38/x
  3. Step 3: Cross multiply
    56,418.99x = 84,636.63 × 30,109.38
  4. Step 4: Simplify right side
    56,418.99x = 2,548,356,454.59
  5. Step 5: Solve for x
    x = 2,548,356,454.59/56,418.99
  6. Step 6: Final answer
    x = 45,168.42

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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.