Home / 51,546.04-77,328.78-20,383.72

Finding the Fourth Proportional to 51,546.04, 77,328.78 and 20,383.72

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Solution

The fourth proportional to 51,546.04, 77,328.78 and 20,383.72 is: 30,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,546.04 : 77,328.78 = 20,383.72 : x
  2. Step 2: Convert to fraction form
    51,546.04/77,328.78 = 20,383.72/x
  3. Step 3: Cross multiply
    51,546.04x = 77,328.78 × 20,383.72
  4. Step 4: Simplify right side
    51,546.04x = 1,576,248,199.46
  5. Step 5: Solve for x
    x = 1,576,248,199.46/51,546.04
  6. Step 6: Final answer
    x = 30,579.42

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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.