Home / 45,473.81-68,219.96-19,178.64

Finding the Fourth Proportional to 45,473.81, 68,219.96 and 19,178.64

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Solution

The fourth proportional to 45,473.81, 68,219.96 and 19,178.64 is: 28,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,473.81 : 68,219.96 = 19,178.64 : x
  2. Step 2: Convert to fraction form
    45,473.81/68,219.96 = 19,178.64/x
  3. Step 3: Cross multiply
    45,473.81x = 68,219.96 × 19,178.64
  4. Step 4: Simplify right side
    45,473.81x = 1,308,365,957.76
  5. Step 5: Solve for x
    x = 1,308,365,957.76/45,473.81
  6. Step 6: Final answer
    x = 28,771.86

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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.