Home / 89,619.95-123,661.28-51,372.18

Finding the Fourth Proportional to 89,619.95, 123,661.28 and 51,372.18

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Solution

The fourth proportional to 89,619.95, 123,661.28 and 51,372.18 is: 70,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.95 : 123,661.28 = 51,372.18 : x
  2. Step 2: Convert to fraction form
    89,619.95/123,661.28 = 51,372.18/x
  3. Step 3: Cross multiply
    89,619.95x = 123,661.28 × 51,372.18
  4. Step 4: Simplify right side
    89,619.95x = 6,352,749,663.62
  5. Step 5: Solve for x
    x = 6,352,749,663.62/89,619.95
  6. Step 6: Final answer
    x = 70,885.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.