Home / 51,489.14-71,038.50-28,824.80

Finding the Fourth Proportional to 51,489.14, 71,038.50 and 28,824.80

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Solution

The fourth proportional to 51,489.14, 71,038.50 and 28,824.80 is: 39,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,489.14 : 71,038.50 = 28,824.80 : x
  2. Step 2: Convert to fraction form
    51,489.14/71,038.50 = 28,824.80/x
  3. Step 3: Cross multiply
    51,489.14x = 71,038.50 × 28,824.80
  4. Step 4: Simplify right side
    51,489.14x = 2,047,670,554.80
  5. Step 5: Solve for x
    x = 2,047,670,554.80/51,489.14
  6. Step 6: Final answer
    x = 39,768.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.