Home / 51,008.78-76,518.99-13,570.38

Finding the Fourth Proportional to 51,008.78, 76,518.99 and 13,570.38

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Solution

The fourth proportional to 51,008.78, 76,518.99 and 13,570.38 is: 20,357.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,008.78 : 76,518.99 = 13,570.38 : x
  2. Step 2: Convert to fraction form
    51,008.78/76,518.99 = 13,570.38/x
  3. Step 3: Cross multiply
    51,008.78x = 76,518.99 × 13,570.38
  4. Step 4: Simplify right side
    51,008.78x = 1,038,391,321.07
  5. Step 5: Solve for x
    x = 1,038,391,321.07/51,008.78
  6. Step 6: Final answer
    x = 20,357.11

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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.