Home / 30,605.23-45,902.56-8,116.07

Finding the Fourth Proportional to 30,605.23, 45,902.56 and 8,116.07

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Solution

The fourth proportional to 30,605.23, 45,902.56 and 8,116.07 is: 12,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.23 : 45,902.56 = 8,116.07 : x
  2. Step 2: Convert to fraction form
    30,605.23/45,902.56 = 8,116.07/x
  3. Step 3: Cross multiply
    30,605.23x = 45,902.56 × 8,116.07
  4. Step 4: Simplify right side
    30,605.23x = 372,548,390.14
  5. Step 5: Solve for x
    x = 372,548,390.14/30,605.23
  6. Step 6: Final answer
    x = 12,172.70

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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.