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Finding the Fourth Proportional to 67,970, 101,955.06 and 25,840.19

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Solution

The fourth proportional to 67,970, 101,955.06 and 25,840.19 is: 38,760.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,970 : 101,955.06 = 25,840.19 : x
  2. Step 2: Convert to fraction form
    67,970/101,955.06 = 25,840.19/x
  3. Step 3: Cross multiply
    67,970x = 101,955.06 × 25,840.19
  4. Step 4: Simplify right side
    67,970x = 2,634,538,121.86
  5. Step 5: Solve for x
    x = 2,634,538,121.86/67,970
  6. Step 6: Final answer
    x = 38,760.31

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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.