Home / 74,041.92-102,180.20-40,507.92

Finding the Fourth Proportional to 74,041.92, 102,180.20 and 40,507.92

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Solution

The fourth proportional to 74,041.92, 102,180.20 and 40,507.92 is: 55,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,041.92 : 102,180.20 = 40,507.92 : x
  2. Step 2: Convert to fraction form
    74,041.92/102,180.20 = 40,507.92/x
  3. Step 3: Cross multiply
    74,041.92x = 102,180.20 × 40,507.92
  4. Step 4: Simplify right side
    74,041.92x = 4,139,107,164.64
  5. Step 5: Solve for x
    x = 4,139,107,164.64/74,041.92
  6. Step 6: Final answer
    x = 55,902.21

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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.