Home / 74,257.63-111,374.60-21,654.81

Finding the Fourth Proportional to 74,257.63, 111,374.60 and 21,654.81

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Solution

The fourth proportional to 74,257.63, 111,374.60 and 21,654.81 is: 32,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,257.63 : 111,374.60 = 21,654.81 : x
  2. Step 2: Convert to fraction form
    74,257.63/111,374.60 = 21,654.81/x
  3. Step 3: Cross multiply
    74,257.63x = 111,374.60 × 21,654.81
  4. Step 4: Simplify right side
    74,257.63x = 2,411,795,693.55
  5. Step 5: Solve for x
    x = 2,411,795,693.55/74,257.63
  6. Step 6: Final answer
    x = 32,478.76

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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.