Home / 57,803.46-86,712.14-20,355.80

Finding the Fourth Proportional to 57,803.46, 86,712.14 and 20,355.80

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Solution

The fourth proportional to 57,803.46, 86,712.14 and 20,355.80 is: 30,536.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,803.46 : 86,712.14 = 20,355.80 : x
  2. Step 2: Convert to fraction form
    57,803.46/86,712.14 = 20,355.80/x
  3. Step 3: Cross multiply
    57,803.46x = 86,712.14 × 20,355.80
  4. Step 4: Simplify right side
    57,803.46x = 1,765,094,596.74
  5. Step 5: Solve for x
    x = 1,765,094,596.74/57,803.46
  6. Step 6: Final answer
    x = 30,536.14

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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.