Home / 74,039.56-102,181.62-40,510.60

Finding the Fourth Proportional to 74,039.56, 102,181.62 and 40,510.60

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Solution

The fourth proportional to 74,039.56, 102,181.62 and 40,510.60 is: 55,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,039.56 : 102,181.62 = 40,510.60 : x
  2. Step 2: Convert to fraction form
    74,039.56/102,181.62 = 40,510.60/x
  3. Step 3: Cross multiply
    74,039.56x = 102,181.62 × 40,510.60
  4. Step 4: Simplify right side
    74,039.56x = 4,139,438,735.17
  5. Step 5: Solve for x
    x = 4,139,438,735.17/74,039.56
  6. Step 6: Final answer
    x = 55,908.47

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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.