Home / 52,071.80-78,091.56-18,787.54

Finding the Fourth Proportional to 52,071.80, 78,091.56 and 18,787.54

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Solution

The fourth proportional to 52,071.80, 78,091.56 and 18,787.54 is: 28,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,071.80 : 78,091.56 = 18,787.54 : x
  2. Step 2: Convert to fraction form
    52,071.80/78,091.56 = 18,787.54/x
  3. Step 3: Cross multiply
    52,071.80x = 78,091.56 × 18,787.54
  4. Step 4: Simplify right side
    52,071.80x = 1,467,148,307.16
  5. Step 5: Solve for x
    x = 1,467,148,307.16/52,071.80
  6. Step 6: Final answer
    x = 28,175.49

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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.