Home / 53,357.40-79,980.48-20,054.52

Finding the Fourth Proportional to 53,357.40, 79,980.48 and 20,054.52

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Solution

The fourth proportional to 53,357.40, 79,980.48 and 20,054.52 is: 30,060.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,357.40 : 79,980.48 = 20,054.52 : x
  2. Step 2: Convert to fraction form
    53,357.40/79,980.48 = 20,054.52/x
  3. Step 3: Cross multiply
    53,357.40x = 79,980.48 × 20,054.52
  4. Step 4: Simplify right side
    53,357.40x = 1,603,970,135.77
  5. Step 5: Solve for x
    x = 1,603,970,135.77/53,357.40
  6. Step 6: Final answer
    x = 30,060.88

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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.