Home / 45,405.65-68,108.53-20,441.05

Finding the Fourth Proportional to 45,405.65, 68,108.53 and 20,441.05

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Solution

The fourth proportional to 45,405.65, 68,108.53 and 20,441.05 is: 30,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.65 : 68,108.53 = 20,441.05 : x
  2. Step 2: Convert to fraction form
    45,405.65/68,108.53 = 20,441.05/x
  3. Step 3: Cross multiply
    45,405.65x = 68,108.53 × 20,441.05
  4. Step 4: Simplify right side
    45,405.65x = 1,392,209,867.16
  5. Step 5: Solve for x
    x = 1,392,209,867.16/45,405.65
  6. Step 6: Final answer
    x = 30,661.60

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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.