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Finding the Fourth Proportional to 92,820.98, 128,093.07 and 50,379.51

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Solution

The fourth proportional to 92,820.98, 128,093.07 and 50,379.51 is: 69,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,820.98 : 128,093.07 = 50,379.51 : x
  2. Step 2: Convert to fraction form
    92,820.98/128,093.07 = 50,379.51/x
  3. Step 3: Cross multiply
    92,820.98x = 128,093.07 × 50,379.51
  4. Step 4: Simplify right side
    92,820.98x = 6,453,266,101.00
  5. Step 5: Solve for x
    x = 6,453,266,101.00/92,820.98
  6. Step 6: Final answer
    x = 69,523.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.