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Finding the Fourth Proportional to 72,720, 109,053.00 and 25,322.93

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Solution

The fourth proportional to 72,720, 109,053.00 and 25,322.93 is: 37,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,720 : 109,053.00 = 25,322.93 : x
  2. Step 2: Convert to fraction form
    72,720/109,053.00 = 25,322.93/x
  3. Step 3: Cross multiply
    72,720x = 109,053.00 × 25,322.93
  4. Step 4: Simplify right side
    72,720x = 2,761,540,845.06
  5. Step 5: Solve for x
    x = 2,761,540,845.06/72,720
  6. Step 6: Final answer
    x = 37,974.98

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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.