Home / 74,172.07-102,357.76-40,180.62

Finding the Fourth Proportional to 74,172.07, 102,357.76 and 40,180.62

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Solution

The fourth proportional to 74,172.07, 102,357.76 and 40,180.62 is: 55,449.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.07 : 102,357.76 = 40,180.62 : x
  2. Step 2: Convert to fraction form
    74,172.07/102,357.76 = 40,180.62/x
  3. Step 3: Cross multiply
    74,172.07x = 102,357.76 × 40,180.62
  4. Step 4: Simplify right side
    74,172.07x = 4,112,798,258.61
  5. Step 5: Solve for x
    x = 4,112,798,258.61/74,172.07
  6. Step 6: Final answer
    x = 55,449.42

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1.5x scale

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.