Home / 60,774.21-91,172.03-20,783.79

Finding the Fourth Proportional to 60,774.21, 91,172.03 and 20,783.79

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Solution

The fourth proportional to 60,774.21, 91,172.03 and 20,783.79 is: 31,179.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,774.21 : 91,172.03 = 20,783.79 : x
  2. Step 2: Convert to fraction form
    60,774.21/91,172.03 = 20,783.79/x
  3. Step 3: Cross multiply
    60,774.21x = 91,172.03 × 20,783.79
  4. Step 4: Simplify right side
    60,774.21x = 1,894,900,221.47
  5. Step 5: Solve for x
    x = 1,894,900,221.47/60,774.21
  6. Step 6: Final answer
    x = 31,179.35

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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.