Home / 57,705.90-86,597.51-20,266.12

Finding the Fourth Proportional to 57,705.90, 86,597.51 and 20,266.12

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Solution

The fourth proportional to 57,705.90, 86,597.51 and 20,266.12 is: 30,412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,705.90 : 86,597.51 = 20,266.12 : x
  2. Step 2: Convert to fraction form
    57,705.90/86,597.51 = 20,266.12/x
  3. Step 3: Cross multiply
    57,705.90x = 86,597.51 × 20,266.12
  4. Step 4: Simplify right side
    57,705.90x = 1,754,995,529.36
  5. Step 5: Solve for x
    x = 1,754,995,529.36/57,705.90
  6. Step 6: Final answer
    x = 30,412.76

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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.