Home / 51,474.78-77,204.04-19,880.16

Finding the Fourth Proportional to 51,474.78, 77,204.04 and 19,880.16

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Solution

The fourth proportional to 51,474.78, 77,204.04 and 19,880.16 is: 29,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,474.78 : 77,204.04 = 19,880.16 : x
  2. Step 2: Convert to fraction form
    51,474.78/77,204.04 = 19,880.16/x
  3. Step 3: Cross multiply
    51,474.78x = 77,204.04 × 19,880.16
  4. Step 4: Simplify right side
    51,474.78x = 1,534,828,667.85
  5. Step 5: Solve for x
    x = 1,534,828,667.85/51,474.78
  6. Step 6: Final answer
    x = 29,817.10

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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.