Home / 51,106.75-70,528.40-28,750.75

Finding the Fourth Proportional to 51,106.75, 70,528.40 and 28,750.75

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Solution

The fourth proportional to 51,106.75, 70,528.40 and 28,750.75 is: 39,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,106.75 : 70,528.40 = 28,750.75 : x
  2. Step 2: Convert to fraction form
    51,106.75/70,528.40 = 28,750.75/x
  3. Step 3: Cross multiply
    51,106.75x = 70,528.40 × 28,750.75
  4. Step 4: Simplify right side
    51,106.75x = 2,027,744,396.30
  5. Step 5: Solve for x
    x = 2,027,744,396.30/51,106.75
  6. Step 6: Final answer
    x = 39,676.65

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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.