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Finding the Fourth Proportional to 52,852.58, 79,278.82 and 12,871.54

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Solution

The fourth proportional to 52,852.58, 79,278.82 and 12,871.54 is: 19,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,852.58 : 79,278.82 = 12,871.54 : x
  2. Step 2: Convert to fraction form
    52,852.58/79,278.82 = 12,871.54/x
  3. Step 3: Cross multiply
    52,852.58x = 79,278.82 × 12,871.54
  4. Step 4: Simplify right side
    52,852.58x = 1,020,440,569.70
  5. Step 5: Solve for x
    x = 1,020,440,569.70/52,852.58
  6. Step 6: Final answer
    x = 19,307.30

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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.