Home / 56,000.20-83,885.10-38,489.80

Finding the Fourth Proportional to 56,000.20, 83,885.10 and 38,489.80

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Solution

The fourth proportional to 56,000.20, 83,885.10 and 38,489.80 is: 57,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,000.20 : 83,885.10 = 38,489.80 : x
  2. Step 2: Convert to fraction form
    56,000.20/83,885.10 = 38,489.80/x
  3. Step 3: Cross multiply
    56,000.20x = 83,885.10 × 38,489.80
  4. Step 4: Simplify right side
    56,000.20x = 3,228,720,721.98
  5. Step 5: Solve for x
    x = 3,228,720,721.98/56,000.20
  6. Step 6: Final answer
    x = 57,655.52

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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.