Home / 53,684.78-80,556.12-31,541.40

Finding the Fourth Proportional to 53,684.78, 80,556.12 and 31,541.40

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Solution

The fourth proportional to 53,684.78, 80,556.12 and 31,541.40 is: 47,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,684.78 : 80,556.12 = 31,541.40 : x
  2. Step 2: Convert to fraction form
    53,684.78/80,556.12 = 31,541.40/x
  3. Step 3: Cross multiply
    53,684.78x = 80,556.12 × 31,541.40
  4. Step 4: Simplify right side
    53,684.78x = 2,540,852,803.37
  5. Step 5: Solve for x
    x = 2,540,852,803.37/53,684.78
  6. Step 6: Final answer
    x = 47,329.11

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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.