Home / 52,071.55-78,091.16-18,787.28

Finding the Fourth Proportional to 52,071.55, 78,091.16 and 18,787.28

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Solution

The fourth proportional to 52,071.55, 78,091.16 and 18,787.28 is: 28,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,071.55 : 78,091.16 = 18,787.28 : x
  2. Step 2: Convert to fraction form
    52,071.55/78,091.16 = 18,787.28/x
  3. Step 3: Cross multiply
    52,071.55x = 78,091.16 × 18,787.28
  4. Step 4: Simplify right side
    52,071.55x = 1,467,120,246.25
  5. Step 5: Solve for x
    x = 1,467,120,246.25/52,071.55
  6. Step 6: Final answer
    x = 28,175.08

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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.