Home / 74,035.72-102,170.10-40,501

Finding the Fourth Proportional to 74,035.72, 102,170.10 and 40,501

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Solution

The fourth proportional to 74,035.72, 102,170.10 and 40,501 is: 55,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,035.72 : 102,170.10 = 40,501 : x
  2. Step 2: Convert to fraction form
    74,035.72/102,170.10 = 40,501/x
  3. Step 3: Cross multiply
    74,035.72x = 102,170.10 × 40,501
  4. Step 4: Simplify right side
    74,035.72x = 4,137,991,220.10
  5. Step 5: Solve for x
    x = 4,137,991,220.10/74,035.72
  6. Step 6: Final answer
    x = 55,891.82

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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.