Home / 78,813.36-108,762.08-43,003.26

Finding the Fourth Proportional to 78,813.36, 108,762.08 and 43,003.26

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Solution

The fourth proportional to 78,813.36, 108,762.08 and 43,003.26 is: 59,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,813.36 : 108,762.08 = 43,003.26 : x
  2. Step 2: Convert to fraction form
    78,813.36/108,762.08 = 43,003.26/x
  3. Step 3: Cross multiply
    78,813.36x = 108,762.08 × 43,003.26
  4. Step 4: Simplify right side
    78,813.36x = 4,677,123,789.36
  5. Step 5: Solve for x
    x = 4,677,123,789.36/78,813.36
  6. Step 6: Final answer
    x = 59,344.30

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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.