Home / 51,409.89-77,126.19-21,852.99

Finding the Fourth Proportional to 51,409.89, 77,126.19 and 21,852.99

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Solution

The fourth proportional to 51,409.89, 77,126.19 and 21,852.99 is: 32,784.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,409.89 : 77,126.19 = 21,852.99 : x
  2. Step 2: Convert to fraction form
    51,409.89/77,126.19 = 21,852.99/x
  3. Step 3: Cross multiply
    51,409.89x = 77,126.19 × 21,852.99
  4. Step 4: Simplify right side
    51,409.89x = 1,685,437,858.81
  5. Step 5: Solve for x
    x = 1,685,437,858.81/51,409.89
  6. Step 6: Final answer
    x = 32,784.31

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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.