Home / 42,778.41-64,184-17,811.75

Finding the Fourth Proportional to 42,778.41, 64,184 and 17,811.75

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Solution

The fourth proportional to 42,778.41, 64,184 and 17,811.75 is: 26,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,778.41 : 64,184 = 17,811.75 : x
  2. Step 2: Convert to fraction form
    42,778.41/64,184 = 17,811.75/x
  3. Step 3: Cross multiply
    42,778.41x = 64,184 × 17,811.75
  4. Step 4: Simplify right side
    42,778.41x = 1,143,229,362
  5. Step 5: Solve for x
    x = 1,143,229,362/42,778.41
  6. Step 6: Final answer
    x = 26,724.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.