Home / 74,030.72-102,163.20-40,496

Finding the Fourth Proportional to 74,030.72, 102,163.20 and 40,496

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Solution

The fourth proportional to 74,030.72, 102,163.20 and 40,496 is: 55,884.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,030.72 : 102,163.20 = 40,496 : x
  2. Step 2: Convert to fraction form
    74,030.72/102,163.20 = 40,496/x
  3. Step 3: Cross multiply
    74,030.72x = 102,163.20 × 40,496
  4. Step 4: Simplify right side
    74,030.72x = 4,137,200,947.20
  5. Step 5: Solve for x
    x = 4,137,200,947.20/74,030.72
  6. Step 6: Final answer
    x = 55,884.92

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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.