Home / 56,447.38-84,618.09-18,981.25

Finding the Fourth Proportional to 56,447.38, 84,618.09 and 18,981.25

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Solution

The fourth proportional to 56,447.38, 84,618.09 and 18,981.25 is: 28,454.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,447.38 : 84,618.09 = 18,981.25 : x
  2. Step 2: Convert to fraction form
    56,447.38/84,618.09 = 18,981.25/x
  3. Step 3: Cross multiply
    56,447.38x = 84,618.09 × 18,981.25
  4. Step 4: Simplify right side
    56,447.38x = 1,606,157,120.81
  5. Step 5: Solve for x
    x = 1,606,157,120.81/56,447.38
  6. Step 6: Final answer
    x = 28,454.06

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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.