Home / 40,120.80-60,181.20-19,346.40

Finding the Fourth Proportional to 40,120.80, 60,181.20 and 19,346.40

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Solution

The fourth proportional to 40,120.80, 60,181.20 and 19,346.40 is: 29,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.80 : 60,181.20 = 19,346.40 : x
  2. Step 2: Convert to fraction form
    40,120.80/60,181.20 = 19,346.40/x
  3. Step 3: Cross multiply
    40,120.80x = 60,181.20 × 19,346.40
  4. Step 4: Simplify right side
    40,120.80x = 1,164,289,567.68
  5. Step 5: Solve for x
    x = 1,164,289,567.68/40,120.80
  6. Step 6: Final answer
    x = 29,019.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.