Home / 74,119.73-102,284.49-40,127.32

Finding the Fourth Proportional to 74,119.73, 102,284.49 and 40,127.32

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Solution

The fourth proportional to 74,119.73, 102,284.49 and 40,127.32 is: 55,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,119.73 : 102,284.49 = 40,127.32 : x
  2. Step 2: Convert to fraction form
    74,119.73/102,284.49 = 40,127.32/x
  3. Step 3: Cross multiply
    74,119.73x = 102,284.49 × 40,127.32
  4. Step 4: Simplify right side
    74,119.73x = 4,104,402,461.27
  5. Step 5: Solve for x
    x = 4,104,402,461.27/74,119.73
  6. Step 6: Final answer
    x = 55,375.30

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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.