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Finding the Fourth Proportional to 68,058.60, 102,104.10 and 28,595.40

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Solution

The fourth proportional to 68,058.60, 102,104.10 and 28,595.40 is: 42,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,058.60 : 102,104.10 = 28,595.40 : x
  2. Step 2: Convert to fraction form
    68,058.60/102,104.10 = 28,595.40/x
  3. Step 3: Cross multiply
    68,058.60x = 102,104.10 × 28,595.40
  4. Step 4: Simplify right side
    68,058.60x = 2,919,707,581.14
  5. Step 5: Solve for x
    x = 2,919,707,581.14/68,058.60
  6. Step 6: Final answer
    x = 42,899.91

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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.