Home / 57,028.50-85,547.53-21,014.76

Finding the Fourth Proportional to 57,028.50, 85,547.53 and 21,014.76

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Solution

The fourth proportional to 57,028.50, 85,547.53 and 21,014.76 is: 31,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,028.50 : 85,547.53 = 21,014.76 : x
  2. Step 2: Convert to fraction form
    57,028.50/85,547.53 = 21,014.76/x
  3. Step 3: Cross multiply
    57,028.50x = 85,547.53 × 21,014.76
  4. Step 4: Simplify right side
    57,028.50x = 1,797,760,811.54
  5. Step 5: Solve for x
    x = 1,797,760,811.54/57,028.50
  6. Step 6: Final answer
    x = 31,523.90

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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.