Home / 65,721.61-98,598.82-18,974.49

Finding the Fourth Proportional to 65,721.61, 98,598.82 and 18,974.49

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Solution

The fourth proportional to 65,721.61, 98,598.82 and 18,974.49 is: 28,466.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,721.61 : 98,598.82 = 18,974.49 : x
  2. Step 2: Convert to fraction form
    65,721.61/98,598.82 = 18,974.49/x
  3. Step 3: Cross multiply
    65,721.61x = 98,598.82 × 18,974.49
  4. Step 4: Simplify right side
    65,721.61x = 1,870,861,736.24
  5. Step 5: Solve for x
    x = 1,870,861,736.24/65,721.61
  6. Step 6: Final answer
    x = 28,466.46

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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.