Home / 78,863.85-108,833.76-43,055.37

Finding the Fourth Proportional to 78,863.85, 108,833.76 and 43,055.37

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Solution

The fourth proportional to 78,863.85, 108,833.76 and 43,055.37 is: 59,417.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,863.85 : 108,833.76 = 43,055.37 : x
  2. Step 2: Convert to fraction form
    78,863.85/108,833.76 = 43,055.37/x
  3. Step 3: Cross multiply
    78,863.85x = 108,833.76 × 43,055.37
  4. Step 4: Simplify right side
    78,863.85x = 4,685,877,805.29
  5. Step 5: Solve for x
    x = 4,685,877,805.29/78,863.85
  6. Step 6: Final answer
    x = 59,417.31

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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.