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Finding the Fourth Proportional to 75,409.67, 113,112.68 and 19,250.25

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Solution

The fourth proportional to 75,409.67, 113,112.68 and 19,250.25 is: 28,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,409.67 : 113,112.68 = 19,250.25 : x
  2. Step 2: Convert to fraction form
    75,409.67/113,112.68 = 19,250.25/x
  3. Step 3: Cross multiply
    75,409.67x = 113,112.68 × 19,250.25
  4. Step 4: Simplify right side
    75,409.67x = 2,177,447,368.17
  5. Step 5: Solve for x
    x = 2,177,447,368.17/75,409.67
  6. Step 6: Final answer
    x = 28,874.91

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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.