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Finding the Fourth Proportional to 72,026.99, 108,040.48 and 19,436.39

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Solution

The fourth proportional to 72,026.99, 108,040.48 and 19,436.39 is: 29,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,026.99 : 108,040.48 = 19,436.39 : x
  2. Step 2: Convert to fraction form
    72,026.99/108,040.48 = 19,436.39/x
  3. Step 3: Cross multiply
    72,026.99x = 108,040.48 × 19,436.39
  4. Step 4: Simplify right side
    72,026.99x = 2,099,916,905.07
  5. Step 5: Solve for x
    x = 2,099,916,905.07/72,026.99
  6. Step 6: Final answer
    x = 29,154.58

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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.