Home / 54,927.12-75,781.56-31,051.44

Finding the Fourth Proportional to 54,927.12, 75,781.56 and 31,051.44

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Solution

The fourth proportional to 54,927.12, 75,781.56 and 31,051.44 is: 42,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,927.12 : 75,781.56 = 31,051.44 : x
  2. Step 2: Convert to fraction form
    54,927.12/75,781.56 = 31,051.44/x
  3. Step 3: Cross multiply
    54,927.12x = 75,781.56 × 31,051.44
  4. Step 4: Simplify right side
    54,927.12x = 2,353,126,563.45
  5. Step 5: Solve for x
    x = 2,353,126,563.45/54,927.12
  6. Step 6: Final answer
    x = 42,840.89

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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.