Home / 40,212.80-60,319.20-30,233.60

Finding the Fourth Proportional to 40,212.80, 60,319.20 and 30,233.60

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Solution

The fourth proportional to 40,212.80, 60,319.20 and 30,233.60 is: 45,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,212.80 : 60,319.20 = 30,233.60 : x
  2. Step 2: Convert to fraction form
    40,212.80/60,319.20 = 30,233.60/x
  3. Step 3: Cross multiply
    40,212.80x = 60,319.20 × 30,233.60
  4. Step 4: Simplify right side
    40,212.80x = 1,823,666,565.12
  5. Step 5: Solve for x
    x = 1,823,666,565.12/40,212.80
  6. Step 6: Final answer
    x = 45,350.40

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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.