Home / 45,116.32-67,698.96-18,823.36

Finding the Fourth Proportional to 45,116.32, 67,698.96 and 18,823.36

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Solution

The fourth proportional to 45,116.32, 67,698.96 and 18,823.36 is: 28,245.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,116.32 : 67,698.96 = 18,823.36 : x
  2. Step 2: Convert to fraction form
    45,116.32/67,698.96 = 18,823.36/x
  3. Step 3: Cross multiply
    45,116.32x = 67,698.96 × 18,823.36
  4. Step 4: Simplify right side
    45,116.32x = 1,274,321,895.71
  5. Step 5: Solve for x
    x = 1,274,321,895.71/45,116.32
  6. Step 6: Final answer
    x = 28,245.25

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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.