Home / 53,316.55-79,974.59-21,719.56

Finding the Fourth Proportional to 53,316.55, 79,974.59 and 21,719.56

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Solution

The fourth proportional to 53,316.55, 79,974.59 and 21,719.56 is: 32,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,316.55 : 79,974.59 = 21,719.56 : x
  2. Step 2: Convert to fraction form
    53,316.55/79,974.59 = 21,719.56/x
  3. Step 3: Cross multiply
    53,316.55x = 79,974.59 × 21,719.56
  4. Step 4: Simplify right side
    53,316.55x = 1,737,012,851.68
  5. Step 5: Solve for x
    x = 1,737,012,851.68/53,316.55
  6. Step 6: Final answer
    x = 32,579.25

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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.