Home / 57,054.58-78,729.25-31,556.89

Finding the Fourth Proportional to 57,054.58, 78,729.25 and 31,556.89

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Solution

The fourth proportional to 57,054.58, 78,729.25 and 31,556.89 is: 43,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,054.58 : 78,729.25 = 31,556.89 : x
  2. Step 2: Convert to fraction form
    57,054.58/78,729.25 = 31,556.89/x
  3. Step 3: Cross multiply
    57,054.58x = 78,729.25 × 31,556.89
  4. Step 4: Simplify right side
    57,054.58x = 2,484,450,282.03
  5. Step 5: Solve for x
    x = 2,484,450,282.03/57,054.58
  6. Step 6: Final answer
    x = 43,545.15

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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.