Home / 51,587.62-77,388.31-20,415.58

Finding the Fourth Proportional to 51,587.62, 77,388.31 and 20,415.58

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Solution

The fourth proportional to 51,587.62, 77,388.31 and 20,415.58 is: 30,626.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,587.62 : 77,388.31 = 20,415.58 : x
  2. Step 2: Convert to fraction form
    51,587.62/77,388.31 = 20,415.58/x
  3. Step 3: Cross multiply
    51,587.62x = 77,388.31 × 20,415.58
  4. Step 4: Simplify right side
    51,587.62x = 1,579,927,065.92
  5. Step 5: Solve for x
    x = 1,579,927,065.92/51,587.62
  6. Step 6: Final answer
    x = 30,626.09

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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.