Home / 60,909.12-91,379.43-18,788.27

Finding the Fourth Proportional to 60,909.12, 91,379.43 and 18,788.27

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Solution

The fourth proportional to 60,909.12, 91,379.43 and 18,788.27 is: 28,187.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,909.12 : 91,379.43 = 18,788.27 : x
  2. Step 2: Convert to fraction form
    60,909.12/91,379.43 = 18,788.27/x
  3. Step 3: Cross multiply
    60,909.12x = 91,379.43 × 18,788.27
  4. Step 4: Simplify right side
    60,909.12x = 1,716,860,946.39
  5. Step 5: Solve for x
    x = 1,716,860,946.39/60,909.12
  6. Step 6: Final answer
    x = 28,187.26

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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.