Home / 56,610.45-84,915.81-19,170.90

Finding the Fourth Proportional to 56,610.45, 84,915.81 and 19,170.90

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Solution

The fourth proportional to 56,610.45, 84,915.81 and 19,170.90 is: 28,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,610.45 : 84,915.81 = 19,170.90 : x
  2. Step 2: Convert to fraction form
    56,610.45/84,915.81 = 19,170.90/x
  3. Step 3: Cross multiply
    56,610.45x = 84,915.81 × 19,170.90
  4. Step 4: Simplify right side
    56,610.45x = 1,627,912,501.93
  5. Step 5: Solve for x
    x = 1,627,912,501.93/56,610.45
  6. Step 6: Final answer
    x = 28,756.40

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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.