Home / 53,251.89-79,890.36-15,812.28

Finding the Fourth Proportional to 53,251.89, 79,890.36 and 15,812.28

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Solution

The fourth proportional to 53,251.89, 79,890.36 and 15,812.28 is: 23,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,251.89 : 79,890.36 = 15,812.28 : x
  2. Step 2: Convert to fraction form
    53,251.89/79,890.36 = 15,812.28/x
  3. Step 3: Cross multiply
    53,251.89x = 79,890.36 × 15,812.28
  4. Step 4: Simplify right side
    53,251.89x = 1,263,248,741.62
  5. Step 5: Solve for x
    x = 1,263,248,741.62/53,251.89
  6. Step 6: Final answer
    x = 23,722.14

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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.