Home / 45,858.23-68,782.74-12,581.64

Finding the Fourth Proportional to 45,858.23, 68,782.74 and 12,581.64

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Solution

The fourth proportional to 45,858.23, 68,782.74 and 12,581.64 is: 18,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,858.23 : 68,782.74 = 12,581.64 : x
  2. Step 2: Convert to fraction form
    45,858.23/68,782.74 = 12,581.64/x
  3. Step 3: Cross multiply
    45,858.23x = 68,782.74 × 12,581.64
  4. Step 4: Simplify right side
    45,858.23x = 865,399,625.71
  5. Step 5: Solve for x
    x = 865,399,625.71/45,858.23
  6. Step 6: Final answer
    x = 18,871.20

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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.