Home / 73,128.60-109,712.02-25,741.76

Finding the Fourth Proportional to 73,128.60, 109,712.02 and 25,741.76

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Solution

The fourth proportional to 73,128.60, 109,712.02 and 25,741.76 is: 38,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,128.60 : 109,712.02 = 25,741.76 : x
  2. Step 2: Convert to fraction form
    73,128.60/109,712.02 = 25,741.76/x
  3. Step 3: Cross multiply
    73,128.60x = 109,712.02 × 25,741.76
  4. Step 4: Simplify right side
    73,128.60x = 2,824,180,487.96
  5. Step 5: Solve for x
    x = 2,824,180,487.96/73,128.60
  6. Step 6: Final answer
    x = 38,619.37

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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.