Home / 53,680.65-80,534.90-20,401.29

Finding the Fourth Proportional to 53,680.65, 80,534.90 and 20,401.29

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Solution

The fourth proportional to 53,680.65, 80,534.90 and 20,401.29 is: 30,607.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,680.65 : 80,534.90 = 20,401.29 : x
  2. Step 2: Convert to fraction form
    53,680.65/80,534.90 = 20,401.29/x
  3. Step 3: Cross multiply
    53,680.65x = 80,534.90 × 20,401.29
  4. Step 4: Simplify right side
    53,680.65x = 1,643,015,748.01
  5. Step 5: Solve for x
    x = 1,643,015,748.01/53,680.65
  6. Step 6: Final answer
    x = 30,607.23

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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.