Home / 91,297.92-136,968.72-28,968.36

Finding the Fourth Proportional to 91,297.92, 136,968.72 and 28,968.36

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Solution

The fourth proportional to 91,297.92, 136,968.72 and 28,968.36 is: 43,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,297.92 : 136,968.72 = 28,968.36 : x
  2. Step 2: Convert to fraction form
    91,297.92/136,968.72 = 28,968.36/x
  3. Step 3: Cross multiply
    91,297.92x = 136,968.72 × 28,968.36
  4. Step 4: Simplify right side
    91,297.92x = 3,967,759,189.70
  5. Step 5: Solve for x
    x = 3,967,759,189.70/91,297.92
  6. Step 6: Final answer
    x = 43,459.47

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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.