Home / 45,386.90-68,087.66-19,099.16

Finding the Fourth Proportional to 45,386.90, 68,087.66 and 19,099.16

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Solution

The fourth proportional to 45,386.90, 68,087.66 and 19,099.16 is: 28,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,386.90 : 68,087.66 = 19,099.16 : x
  2. Step 2: Convert to fraction form
    45,386.90/68,087.66 = 19,099.16/x
  3. Step 3: Cross multiply
    45,386.90x = 68,087.66 × 19,099.16
  4. Step 4: Simplify right side
    45,386.90x = 1,300,416,676.43
  5. Step 5: Solve for x
    x = 1,300,416,676.43/45,386.90
  6. Step 6: Final answer
    x = 28,651.81

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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.