Home / 74,155.77-102,334.34-40,163.47

Finding the Fourth Proportional to 74,155.77, 102,334.34 and 40,163.47

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Solution

The fourth proportional to 74,155.77, 102,334.34 and 40,163.47 is: 55,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,155.77 : 102,334.34 = 40,163.47 : x
  2. Step 2: Convert to fraction form
    74,155.77/102,334.34 = 40,163.47/x
  3. Step 3: Cross multiply
    74,155.77x = 102,334.34 × 40,163.47
  4. Step 4: Simplify right side
    74,155.77x = 4,110,102,039.13
  5. Step 5: Solve for x
    x = 4,110,102,039.13/74,155.77
  6. Step 6: Final answer
    x = 55,425.25

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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.