Home / 68,871.22-103,346.72-28,886.65

Finding the Fourth Proportional to 68,871.22, 103,346.72 and 28,886.65

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Solution

The fourth proportional to 68,871.22, 103,346.72 and 28,886.65 is: 43,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,871.22 : 103,346.72 = 28,886.65 : x
  2. Step 2: Convert to fraction form
    68,871.22/103,346.72 = 28,886.65/x
  3. Step 3: Cross multiply
    68,871.22x = 103,346.72 × 28,886.65
  4. Step 4: Simplify right side
    68,871.22x = 2,985,340,647.34
  5. Step 5: Solve for x
    x = 2,985,340,647.34/68,871.22
  6. Step 6: Final answer
    x = 43,346.70

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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.