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Finding the Fourth Proportional to 67,858.70, 101,755.67 and 30,419.06

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Solution

The fourth proportional to 67,858.70, 101,755.67 and 30,419.06 is: 45,614.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,858.70 : 101,755.67 = 30,419.06 : x
  2. Step 2: Convert to fraction form
    67,858.70/101,755.67 = 30,419.06/x
  3. Step 3: Cross multiply
    67,858.70x = 101,755.67 × 30,419.06
  4. Step 4: Simplify right side
    67,858.70x = 3,095,311,170.20
  5. Step 5: Solve for x
    x = 3,095,311,170.20/67,858.70
  6. Step 6: Final answer
    x = 45,614.07

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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.