Home / 89,985.85-124,194.27-55,550.64

Finding the Fourth Proportional to 89,985.85, 124,194.27 and 55,550.64

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Solution

The fourth proportional to 89,985.85, 124,194.27 and 55,550.64 is: 76,668.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,985.85 : 124,194.27 = 55,550.64 : x
  2. Step 2: Convert to fraction form
    89,985.85/124,194.27 = 55,550.64/x
  3. Step 3: Cross multiply
    89,985.85x = 124,194.27 × 55,550.64
  4. Step 4: Simplify right side
    89,985.85x = 6,899,070,561.86
  5. Step 5: Solve for x
    x = 6,899,070,561.86/89,985.85
  6. Step 6: Final answer
    x = 76,668.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.