Home / 57,206.20-85,809.30-38,543.80

Finding the Fourth Proportional to 57,206.20, 85,809.30 and 38,543.80

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Solution

The fourth proportional to 57,206.20, 85,809.30 and 38,543.80 is: 57,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,206.20 : 85,809.30 = 38,543.80 : x
  2. Step 2: Convert to fraction form
    57,206.20/85,809.30 = 38,543.80/x
  3. Step 3: Cross multiply
    57,206.20x = 85,809.30 × 38,543.80
  4. Step 4: Simplify right side
    57,206.20x = 3,307,416,497.34
  5. Step 5: Solve for x
    x = 3,307,416,497.34/57,206.20
  6. Step 6: Final answer
    x = 57,815.70

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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.