Home / 45,663.12-68,509.32-19,389.96

Finding the Fourth Proportional to 45,663.12, 68,509.32 and 19,389.96

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Solution

The fourth proportional to 45,663.12, 68,509.32 and 19,389.96 is: 29,091.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,663.12 : 68,509.32 = 19,389.96 : x
  2. Step 2: Convert to fraction form
    45,663.12/68,509.32 = 19,389.96/x
  3. Step 3: Cross multiply
    45,663.12x = 68,509.32 × 19,389.96
  4. Step 4: Simplify right side
    45,663.12x = 1,328,392,974.43
  5. Step 5: Solve for x
    x = 1,328,392,974.43/45,663.12
  6. Step 6: Final answer
    x = 29,091.16

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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.