Home / 53,957.10-80,911.35-20,666.10

Finding the Fourth Proportional to 53,957.10, 80,911.35 and 20,666.10

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Solution

The fourth proportional to 53,957.10, 80,911.35 and 20,666.10 is: 30,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,957.10 : 80,911.35 = 20,666.10 : x
  2. Step 2: Convert to fraction form
    53,957.10/80,911.35 = 20,666.10/x
  3. Step 3: Cross multiply
    53,957.10x = 80,911.35 × 20,666.10
  4. Step 4: Simplify right side
    53,957.10x = 1,672,122,050.24
  5. Step 5: Solve for x
    x = 1,672,122,050.24/53,957.10
  6. Step 6: Final answer
    x = 30,989.84

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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.