Home / 52,102.82-71,893.77-30,878.66

Finding the Fourth Proportional to 52,102.82, 71,893.77 and 30,878.66

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Solution

The fourth proportional to 52,102.82, 71,893.77 and 30,878.66 is: 42,607.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,102.82 : 71,893.77 = 30,878.66 : x
  2. Step 2: Convert to fraction form
    52,102.82/71,893.77 = 30,878.66/x
  3. Step 3: Cross multiply
    52,102.82x = 71,893.77 × 30,878.66
  4. Step 4: Simplify right side
    52,102.82x = 2,219,983,279.95
  5. Step 5: Solve for x
    x = 2,219,983,279.95/52,102.82
  6. Step 6: Final answer
    x = 42,607.74

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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.