Home / 45,894.06-68,840.82-12,618.72

Finding the Fourth Proportional to 45,894.06, 68,840.82 and 12,618.72

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Solution

The fourth proportional to 45,894.06, 68,840.82 and 12,618.72 is: 18,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,894.06 : 68,840.82 = 12,618.72 : x
  2. Step 2: Convert to fraction form
    45,894.06/68,840.82 = 12,618.72/x
  3. Step 3: Cross multiply
    45,894.06x = 68,840.82 × 12,618.72
  4. Step 4: Simplify right side
    45,894.06x = 868,683,032.15
  5. Step 5: Solve for x
    x = 868,683,032.15/45,894.06
  6. Step 6: Final answer
    x = 18,928.01

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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.