Home / 51,398.34-77,050.68-19,788.18

Finding the Fourth Proportional to 51,398.34, 77,050.68 and 19,788.18

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Solution

The fourth proportional to 51,398.34, 77,050.68 and 19,788.18 is: 29,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,398.34 : 77,050.68 = 19,788.18 : x
  2. Step 2: Convert to fraction form
    51,398.34/77,050.68 = 19,788.18/x
  3. Step 3: Cross multiply
    51,398.34x = 77,050.68 × 19,788.18
  4. Step 4: Simplify right side
    51,398.34x = 1,524,692,724.96
  5. Step 5: Solve for x
    x = 1,524,692,724.96/51,398.34
  6. Step 6: Final answer
    x = 29,664.24

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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.