Home / 53,028.10-79,540.32-13,585.60

Finding the Fourth Proportional to 53,028.10, 79,540.32 and 13,585.60

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Solution

The fourth proportional to 53,028.10, 79,540.32 and 13,585.60 is: 20,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,028.10 : 79,540.32 = 13,585.60 : x
  2. Step 2: Convert to fraction form
    53,028.10/79,540.32 = 13,585.60/x
  3. Step 3: Cross multiply
    53,028.10x = 79,540.32 × 13,585.60
  4. Step 4: Simplify right side
    53,028.10x = 1,080,602,971.39
  5. Step 5: Solve for x
    x = 1,080,602,971.39/53,028.10
  6. Step 6: Final answer
    x = 20,377.93

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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.