Home / 39,719.89-59,579.78-10,137.72

Finding the Fourth Proportional to 39,719.89, 59,579.78 and 10,137.72

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Solution

The fourth proportional to 39,719.89, 59,579.78 and 10,137.72 is: 15,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,719.89 : 59,579.78 = 10,137.72 : x
  2. Step 2: Convert to fraction form
    39,719.89/59,579.78 = 10,137.72/x
  3. Step 3: Cross multiply
    39,719.89x = 59,579.78 × 10,137.72
  4. Step 4: Simplify right side
    39,719.89x = 604,003,127.30
  5. Step 5: Solve for x
    x = 604,003,127.30/39,719.89
  6. Step 6: Final answer
    x = 15,206.57

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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.