Home / 53,131.95-79,697.52-19,860.39

Finding the Fourth Proportional to 53,131.95, 79,697.52 and 19,860.39

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Solution

The fourth proportional to 53,131.95, 79,697.52 and 19,860.39 is: 29,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,131.95 : 79,697.52 = 19,860.39 : x
  2. Step 2: Convert to fraction form
    53,131.95/79,697.52 = 19,860.39/x
  3. Step 3: Cross multiply
    53,131.95x = 79,697.52 × 19,860.39
  4. Step 4: Simplify right side
    53,131.95x = 1,582,823,829.23
  5. Step 5: Solve for x
    x = 1,582,823,829.23/53,131.95
  6. Step 6: Final answer
    x = 29,790.43

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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.