Home / 53,129.94-79,682.15-15,679.89

Finding the Fourth Proportional to 53,129.94, 79,682.15 and 15,679.89

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Solution

The fourth proportional to 53,129.94, 79,682.15 and 15,679.89 is: 23,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.94 : 79,682.15 = 15,679.89 : x
  2. Step 2: Convert to fraction form
    53,129.94/79,682.15 = 15,679.89/x
  3. Step 3: Cross multiply
    53,129.94x = 79,682.15 × 15,679.89
  4. Step 4: Simplify right side
    53,129.94x = 1,249,407,268.56
  5. Step 5: Solve for x
    x = 1,249,407,268.56/53,129.94
  6. Step 6: Final answer
    x = 23,516.07

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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.