Home / 49,783.40-74,646.30-18,621.80

Finding the Fourth Proportional to 49,783.40, 74,646.30 and 18,621.80

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Solution

The fourth proportional to 49,783.40, 74,646.30 and 18,621.80 is: 27,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,783.40 : 74,646.30 = 18,621.80 : x
  2. Step 2: Convert to fraction form
    49,783.40/74,646.30 = 18,621.80/x
  3. Step 3: Cross multiply
    49,783.40x = 74,646.30 × 18,621.80
  4. Step 4: Simplify right side
    49,783.40x = 1,390,048,469.34
  5. Step 5: Solve for x
    x = 1,390,048,469.34/49,783.40
  6. Step 6: Final answer
    x = 27,921.93

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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.