Home / 72,720.90-109,081.44-62,830.26

Finding the Fourth Proportional to 72,720.90, 109,081.44 and 62,830.26

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Solution

The fourth proportional to 72,720.90, 109,081.44 and 62,830.26 is: 94,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,720.90 : 109,081.44 = 62,830.26 : x
  2. Step 2: Convert to fraction form
    72,720.90/109,081.44 = 62,830.26/x
  3. Step 3: Cross multiply
    72,720.90x = 109,081.44 × 62,830.26
  4. Step 4: Simplify right side
    72,720.90x = 6,853,615,236.37
  5. Step 5: Solve for x
    x = 6,853,615,236.37/72,720.90
  6. Step 6: Final answer
    x = 94,245.47

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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.