Home / 74,328.96-102,570.24-40,336.56

Finding the Fourth Proportional to 74,328.96, 102,570.24 and 40,336.56

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Solution

The fourth proportional to 74,328.96, 102,570.24 and 40,336.56 is: 55,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328.96 : 102,570.24 = 40,336.56 : x
  2. Step 2: Convert to fraction form
    74,328.96/102,570.24 = 40,336.56/x
  3. Step 3: Cross multiply
    74,328.96x = 102,570.24 × 40,336.56
  4. Step 4: Simplify right side
    74,328.96x = 4,137,330,639.97
  5. Step 5: Solve for x
    x = 4,137,330,639.97/74,328.96
  6. Step 6: Final answer
    x = 55,662.43

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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.