Home / 42,790.46-64,162.53-30,334.86

Finding the Fourth Proportional to 42,790.46, 64,162.53 and 30,334.86

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Solution

The fourth proportional to 42,790.46, 64,162.53 and 30,334.86 is: 45,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,790.46 : 64,162.53 = 30,334.86 : x
  2. Step 2: Convert to fraction form
    42,790.46/64,162.53 = 30,334.86/x
  3. Step 3: Cross multiply
    42,790.46x = 64,162.53 × 30,334.86
  4. Step 4: Simplify right side
    42,790.46x = 1,946,361,364.80
  5. Step 5: Solve for x
    x = 1,946,361,364.80/42,790.46
  6. Step 6: Final answer
    x = 45,485.88

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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.