Home / 53,235.81-79,847.51-13,789.89

Finding the Fourth Proportional to 53,235.81, 79,847.51 and 13,789.89

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Solution

The fourth proportional to 53,235.81, 79,847.51 and 13,789.89 is: 20,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,235.81 : 79,847.51 = 13,789.89 : x
  2. Step 2: Convert to fraction form
    53,235.81/79,847.51 = 13,789.89/x
  3. Step 3: Cross multiply
    53,235.81x = 79,847.51 × 13,789.89
  4. Step 4: Simplify right side
    53,235.81x = 1,101,088,310.72
  5. Step 5: Solve for x
    x = 1,101,088,310.72/53,235.81
  6. Step 6: Final answer
    x = 20,683.23

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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.