Home / 45,811.86-68,652.99-19,490.10

Finding the Fourth Proportional to 45,811.86, 68,652.99 and 19,490.10

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Solution

The fourth proportional to 45,811.86, 68,652.99 and 19,490.10 is: 29,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,811.86 : 68,652.99 = 19,490.10 : x
  2. Step 2: Convert to fraction form
    45,811.86/68,652.99 = 19,490.10/x
  3. Step 3: Cross multiply
    45,811.86x = 68,652.99 × 19,490.10
  4. Step 4: Simplify right side
    45,811.86x = 1,338,053,640.40
  5. Step 5: Solve for x
    x = 1,338,053,640.40/45,811.86
  6. Step 6: Final answer
    x = 29,207.58

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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.