Home / 89,556.09-123,590.31-49,272.78

Finding the Fourth Proportional to 89,556.09, 123,590.31 and 49,272.78

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Solution

The fourth proportional to 89,556.09, 123,590.31 and 49,272.78 is: 67,998.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,556.09 : 123,590.31 = 49,272.78 : x
  2. Step 2: Convert to fraction form
    89,556.09/123,590.31 = 49,272.78/x
  3. Step 3: Cross multiply
    89,556.09x = 123,590.31 × 49,272.78
  4. Step 4: Simplify right side
    89,556.09x = 6,089,638,154.76
  5. Step 5: Solve for x
    x = 6,089,638,154.76/89,556.09
  6. Step 6: Final answer
    x = 67,998.04

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1.5x scale

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.