Home / 53,997.30-80,957.52-20,689.20

Finding the Fourth Proportional to 53,997.30, 80,957.52 and 20,689.20

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Solution

The fourth proportional to 53,997.30, 80,957.52 and 20,689.20 is: 31,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,997.30 : 80,957.52 = 20,689.20 : x
  2. Step 2: Convert to fraction form
    53,997.30/80,957.52 = 20,689.20/x
  3. Step 3: Cross multiply
    53,997.30x = 80,957.52 × 20,689.20
  4. Step 4: Simplify right side
    53,997.30x = 1,674,946,322.78
  5. Step 5: Solve for x
    x = 1,674,946,322.78/53,997.30
  6. Step 6: Final answer
    x = 31,019.08

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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.