Home / 45,917.79-68,811.89-19,613.31

Finding the Fourth Proportional to 45,917.79, 68,811.89 and 19,613.31

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Solution

The fourth proportional to 45,917.79, 68,811.89 and 19,613.31 is: 29,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,917.79 : 68,811.89 = 19,613.31 : x
  2. Step 2: Convert to fraction form
    45,917.79/68,811.89 = 19,613.31/x
  3. Step 3: Cross multiply
    45,917.79x = 68,811.89 × 19,613.31
  4. Step 4: Simplify right side
    45,917.79x = 1,349,628,832.19
  5. Step 5: Solve for x
    x = 1,349,628,832.19/45,917.79
  6. Step 6: Final answer
    x = 29,392.29

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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.