Home / 45,968.51-68,951.40-12,690.61

Finding the Fourth Proportional to 45,968.51, 68,951.40 and 12,690.61

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Solution

The fourth proportional to 45,968.51, 68,951.40 and 12,690.61 is: 19,035.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,968.51 : 68,951.40 = 12,690.61 : x
  2. Step 2: Convert to fraction form
    45,968.51/68,951.40 = 12,690.61/x
  3. Step 3: Cross multiply
    45,968.51x = 68,951.40 × 12,690.61
  4. Step 4: Simplify right side
    45,968.51x = 875,035,106.39
  5. Step 5: Solve for x
    x = 875,035,106.39/45,968.51
  6. Step 6: Final answer
    x = 19,035.53

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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.