Home / 53,926.32-74,418.66-31,278.78

Finding the Fourth Proportional to 53,926.32, 74,418.66 and 31,278.78

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Solution

The fourth proportional to 53,926.32, 74,418.66 and 31,278.78 is: 43,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,926.32 : 74,418.66 = 31,278.78 : x
  2. Step 2: Convert to fraction form
    53,926.32/74,418.66 = 31,278.78/x
  3. Step 3: Cross multiply
    53,926.32x = 74,418.66 × 31,278.78
  4. Step 4: Simplify right side
    53,926.32x = 2,327,724,894.03
  5. Step 5: Solve for x
    x = 2,327,724,894.03/53,926.32
  6. Step 6: Final answer
    x = 43,164.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.