Home / 45,784.56-68,660.52-20,803.68

Finding the Fourth Proportional to 45,784.56, 68,660.52 and 20,803.68

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Solution

The fourth proportional to 45,784.56, 68,660.52 and 20,803.68 is: 31,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,784.56 : 68,660.52 = 20,803.68 : x
  2. Step 2: Convert to fraction form
    45,784.56/68,660.52 = 20,803.68/x
  3. Step 3: Cross multiply
    45,784.56x = 68,660.52 × 20,803.68
  4. Step 4: Simplify right side
    45,784.56x = 1,428,391,486.71
  5. Step 5: Solve for x
    x = 1,428,391,486.71/45,784.56
  6. Step 6: Final answer
    x = 31,198.10

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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.