Home / 36,290.52-54,445.86-20,719.08

Finding the Fourth Proportional to 36,290.52, 54,445.86 and 20,719.08

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Solution

The fourth proportional to 36,290.52, 54,445.86 and 20,719.08 is: 31,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,290.52 : 54,445.86 = 20,719.08 : x
  2. Step 2: Convert to fraction form
    36,290.52/54,445.86 = 20,719.08/x
  3. Step 3: Cross multiply
    36,290.52x = 54,445.86 × 20,719.08
  4. Step 4: Simplify right side
    36,290.52x = 1,128,068,129.01
  5. Step 5: Solve for x
    x = 1,128,068,129.01/36,290.52
  6. Step 6: Final answer
    x = 31,084.37

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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.