Home / 52,453.33-78,712.80-21,288.58

Finding the Fourth Proportional to 52,453.33, 78,712.80 and 21,288.58

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Solution

The fourth proportional to 52,453.33, 78,712.80 and 21,288.58 is: 31,946.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,453.33 : 78,712.80 = 21,288.58 : x
  2. Step 2: Convert to fraction form
    52,453.33/78,712.80 = 21,288.58/x
  3. Step 3: Cross multiply
    52,453.33x = 78,712.80 × 21,288.58
  4. Step 4: Simplify right side
    52,453.33x = 1,675,683,239.82
  5. Step 5: Solve for x
    x = 1,675,683,239.82/52,453.33
  6. Step 6: Final answer
    x = 31,946.18

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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.