Home / 68,819.01-103,228.29-18,899.16

Finding the Fourth Proportional to 68,819.01, 103,228.29 and 18,899.16

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Solution

The fourth proportional to 68,819.01, 103,228.29 and 18,899.16 is: 28,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,819.01 : 103,228.29 = 18,899.16 : x
  2. Step 2: Convert to fraction form
    68,819.01/103,228.29 = 18,899.16/x
  3. Step 3: Cross multiply
    68,819.01x = 103,228.29 × 18,899.16
  4. Step 4: Simplify right side
    68,819.01x = 1,950,927,969.24
  5. Step 5: Solve for x
    x = 1,950,927,969.24/68,819.01
  6. Step 6: Final answer
    x = 28,348.68

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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.