Home / 51,010.40-76,521.29-13,571.91

Finding the Fourth Proportional to 51,010.40, 76,521.29 and 13,571.91

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Solution

The fourth proportional to 51,010.40, 76,521.29 and 13,571.91 is: 20,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,010.40 : 76,521.29 = 13,571.91 : x
  2. Step 2: Convert to fraction form
    51,010.40/76,521.29 = 13,571.91/x
  3. Step 3: Cross multiply
    51,010.40x = 76,521.29 × 13,571.91
  4. Step 4: Simplify right side
    51,010.40x = 1,038,539,993.10
  5. Step 5: Solve for x
    x = 1,038,539,993.10/51,010.40
  6. Step 6: Final answer
    x = 20,359.38

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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.