Home / 40,723.89-61,082.94-12,643.26

Finding the Fourth Proportional to 40,723.89, 61,082.94 and 12,643.26

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Solution

The fourth proportional to 40,723.89, 61,082.94 and 12,643.26 is: 18,963.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,723.89 : 61,082.94 = 12,643.26 : x
  2. Step 2: Convert to fraction form
    40,723.89/61,082.94 = 12,643.26/x
  3. Step 3: Cross multiply
    40,723.89x = 61,082.94 × 12,643.26
  4. Step 4: Simplify right side
    40,723.89x = 772,287,491.98
  5. Step 5: Solve for x
    x = 772,287,491.98/40,723.89
  6. Step 6: Final answer
    x = 18,963.99

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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.