Home / 78,333.36-108,100.27-42,523.39

Finding the Fourth Proportional to 78,333.36, 108,100.27 and 42,523.39

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Solution

The fourth proportional to 78,333.36, 108,100.27 and 42,523.39 is: 58,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333.36 : 108,100.27 = 42,523.39 : x
  2. Step 2: Convert to fraction form
    78,333.36/108,100.27 = 42,523.39/x
  3. Step 3: Cross multiply
    78,333.36x = 108,100.27 × 42,523.39
  4. Step 4: Simplify right side
    78,333.36x = 4,596,789,940.32
  5. Step 5: Solve for x
    x = 4,596,789,940.32/78,333.36
  6. Step 6: Final answer
    x = 58,682.40

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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.