Home / 77,148.36-115,721.33-24,557.09

Finding the Fourth Proportional to 77,148.36, 115,721.33 and 24,557.09

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Solution

The fourth proportional to 77,148.36, 115,721.33 and 24,557.09 is: 36,835.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,148.36 : 115,721.33 = 24,557.09 : x
  2. Step 2: Convert to fraction form
    77,148.36/115,721.33 = 24,557.09/x
  3. Step 3: Cross multiply
    77,148.36x = 115,721.33 × 24,557.09
  4. Step 4: Simplify right side
    77,148.36x = 2,841,778,414.34
  5. Step 5: Solve for x
    x = 2,841,778,414.34/77,148.36
  6. Step 6: Final answer
    x = 36,835.24

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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.