Home / 40,763.79-61,171.70-18,579.42

Finding the Fourth Proportional to 40,763.79, 61,171.70 and 18,579.42

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Solution

The fourth proportional to 40,763.79, 61,171.70 and 18,579.42 is: 27,880.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,763.79 : 61,171.70 = 18,579.42 : x
  2. Step 2: Convert to fraction form
    40,763.79/61,171.70 = 18,579.42/x
  3. Step 3: Cross multiply
    40,763.79x = 61,171.70 × 18,579.42
  4. Step 4: Simplify right side
    40,763.79x = 1,136,534,613.52
  5. Step 5: Solve for x
    x = 1,136,534,613.52/40,763.79
  6. Step 6: Final answer
    x = 27,880.98

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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.