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Finding the Fourth Proportional to 91,969.63, 137,953.08 and 25,408.29

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Solution

The fourth proportional to 91,969.63, 137,953.08 and 25,408.29 is: 38,112.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,969.63 : 137,953.08 = 25,408.29 : x
  2. Step 2: Convert to fraction form
    91,969.63/137,953.08 = 25,408.29/x
  3. Step 3: Cross multiply
    91,969.63x = 137,953.08 × 25,408.29
  4. Step 4: Simplify right side
    91,969.63x = 3,505,151,863.03
  5. Step 5: Solve for x
    x = 3,505,151,863.03/91,969.63
  6. Step 6: Final answer
    x = 38,112.06

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1.5x scale

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.