Home / 53,010.36-79,505.76-21,418.68

Finding the Fourth Proportional to 53,010.36, 79,505.76 and 21,418.68

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Solution

The fourth proportional to 53,010.36, 79,505.76 and 21,418.68 is: 32,124.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,010.36 : 79,505.76 = 21,418.68 : x
  2. Step 2: Convert to fraction form
    53,010.36/79,505.76 = 21,418.68/x
  3. Step 3: Cross multiply
    53,010.36x = 79,505.76 × 21,418.68
  4. Step 4: Simplify right side
    53,010.36x = 1,702,908,431.60
  5. Step 5: Solve for x
    x = 1,702,908,431.60/53,010.36
  6. Step 6: Final answer
    x = 32,124.07

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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.