Home / 45,068.32-67,619.76-18,766

Finding the Fourth Proportional to 45,068.32, 67,619.76 and 18,766

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Solution

The fourth proportional to 45,068.32, 67,619.76 and 18,766 is: 28,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,068.32 : 67,619.76 = 18,766 : x
  2. Step 2: Convert to fraction form
    45,068.32/67,619.76 = 18,766/x
  3. Step 3: Cross multiply
    45,068.32x = 67,619.76 × 18,766
  4. Step 4: Simplify right side
    45,068.32x = 1,268,952,416.16
  5. Step 5: Solve for x
    x = 1,268,952,416.16/45,068.32
  6. Step 6: Final answer
    x = 28,156.20

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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.