Home / 74,504.72-102,816.63-40,513.17

Finding the Fourth Proportional to 74,504.72, 102,816.63 and 40,513.17

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Solution

The fourth proportional to 74,504.72, 102,816.63 and 40,513.17 is: 55,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,504.72 : 102,816.63 = 40,513.17 : x
  2. Step 2: Convert to fraction form
    74,504.72/102,816.63 = 40,513.17/x
  3. Step 3: Cross multiply
    74,504.72x = 102,816.63 × 40,513.17
  4. Step 4: Simplify right side
    74,504.72x = 4,165,427,610.02
  5. Step 5: Solve for x
    x = 4,165,427,610.02/74,504.72
  6. Step 6: Final answer
    x = 55,908.24

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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.