Home / 78,958.07-108,957.51-43,148.36

Finding the Fourth Proportional to 78,958.07, 108,957.51 and 43,148.36

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Solution

The fourth proportional to 78,958.07, 108,957.51 and 43,148.36 is: 59,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,958.07 : 108,957.51 = 43,148.36 : x
  2. Step 2: Convert to fraction form
    78,958.07/108,957.51 = 43,148.36/x
  3. Step 3: Cross multiply
    78,958.07x = 108,957.51 × 43,148.36
  4. Step 4: Simplify right side
    78,958.07x = 4,701,337,866.18
  5. Step 5: Solve for x
    x = 4,701,337,866.18/78,958.07
  6. Step 6: Final answer
    x = 59,542.21

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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.