Home / 53,954.04-80,930.10-20,665.08

Finding the Fourth Proportional to 53,954.04, 80,930.10 and 20,665.08

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Solution

The fourth proportional to 53,954.04, 80,930.10 and 20,665.08 is: 30,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,954.04 : 80,930.10 = 20,665.08 : x
  2. Step 2: Convert to fraction form
    53,954.04/80,930.10 = 20,665.08/x
  3. Step 3: Cross multiply
    53,954.04x = 80,930.10 × 20,665.08
  4. Step 4: Simplify right side
    53,954.04x = 1,672,426,990.91
  5. Step 5: Solve for x
    x = 1,672,426,990.91/53,954.04
  6. Step 6: Final answer
    x = 30,997.25

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1.5x scale

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.