Home / 52,071.96-78,091.80-18,787.70

Finding the Fourth Proportional to 52,071.96, 78,091.80 and 18,787.70

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Solution

The fourth proportional to 52,071.96, 78,091.80 and 18,787.70 is: 28,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,071.96 : 78,091.80 = 18,787.70 : x
  2. Step 2: Convert to fraction form
    52,071.96/78,091.80 = 18,787.70/x
  3. Step 3: Cross multiply
    52,071.96x = 78,091.80 × 18,787.70
  4. Step 4: Simplify right side
    52,071.96x = 1,467,164,920.40
  5. Step 5: Solve for x
    x = 1,467,164,920.40/52,071.96
  6. Step 6: Final answer
    x = 28,175.72

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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.