Home / 42,749.64-64,124.42-11,584.89

Finding the Fourth Proportional to 42,749.64, 64,124.42 and 11,584.89

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Solution

The fourth proportional to 42,749.64, 64,124.42 and 11,584.89 is: 17,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749.64 : 64,124.42 = 11,584.89 : x
  2. Step 2: Convert to fraction form
    42,749.64/64,124.42 = 11,584.89/x
  3. Step 3: Cross multiply
    42,749.64x = 64,124.42 × 11,584.89
  4. Step 4: Simplify right side
    42,749.64x = 742,874,294.09
  5. Step 5: Solve for x
    x = 742,874,294.09/42,749.64
  6. Step 6: Final answer
    x = 17,377.32

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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.