Home / 85,764.20-118,353.30-48,039.80

Finding the Fourth Proportional to 85,764.20, 118,353.30 and 48,039.80

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Solution

The fourth proportional to 85,764.20, 118,353.30 and 48,039.80 is: 66,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,764.20 : 118,353.30 = 48,039.80 : x
  2. Step 2: Convert to fraction form
    85,764.20/118,353.30 = 48,039.80/x
  3. Step 3: Cross multiply
    85,764.20x = 118,353.30 × 48,039.80
  4. Step 4: Simplify right side
    85,764.20x = 5,685,668,861.34
  5. Step 5: Solve for x
    x = 5,685,668,861.34/85,764.20
  6. Step 6: Final answer
    x = 66,294.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.