Home / 52,112.74-71,915.40-28,240

Finding the Fourth Proportional to 52,112.74, 71,915.40 and 28,240

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Solution

The fourth proportional to 52,112.74, 71,915.40 and 28,240 is: 38,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,112.74 : 71,915.40 = 28,240 : x
  2. Step 2: Convert to fraction form
    52,112.74/71,915.40 = 28,240/x
  3. Step 3: Cross multiply
    52,112.74x = 71,915.40 × 28,240
  4. Step 4: Simplify right side
    52,112.74x = 2,030,890,896.00
  5. Step 5: Solve for x
    x = 2,030,890,896.00/52,112.74
  6. Step 6: Final answer
    x = 38,971.10

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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.