Home / 78,336.33-108,103.48-42,526.27

Finding the Fourth Proportional to 78,336.33, 108,103.48 and 42,526.27

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Solution

The fourth proportional to 78,336.33, 108,103.48 and 42,526.27 is: 58,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,336.33 : 108,103.48 = 42,526.27 : x
  2. Step 2: Convert to fraction form
    78,336.33/108,103.48 = 42,526.27/x
  3. Step 3: Cross multiply
    78,336.33x = 108,103.48 × 42,526.27
  4. Step 4: Simplify right side
    78,336.33x = 4,597,237,778.42
  5. Step 5: Solve for x
    x = 4,597,237,778.42/78,336.33
  6. Step 6: Final answer
    x = 58,685.90

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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.