Home / 53,405.28-80,119.22-20,124.63

Finding the Fourth Proportional to 53,405.28, 80,119.22 and 20,124.63

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Solution

The fourth proportional to 53,405.28, 80,119.22 and 20,124.63 is: 30,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,405.28 : 80,119.22 = 20,124.63 : x
  2. Step 2: Convert to fraction form
    53,405.28/80,119.22 = 20,124.63/x
  3. Step 3: Cross multiply
    53,405.28x = 80,119.22 × 20,124.63
  4. Step 4: Simplify right side
    53,405.28x = 1,612,369,557.77
  5. Step 5: Solve for x
    x = 1,612,369,557.77/53,405.28
  6. Step 6: Final answer
    x = 30,191.20

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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.