Home / 78,026.26-116,969.11-28,071.23

Finding the Fourth Proportional to 78,026.26, 116,969.11 and 28,071.23

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Solution

The fourth proportional to 78,026.26, 116,969.11 and 28,071.23 is: 42,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,026.26 : 116,969.11 = 28,071.23 : x
  2. Step 2: Convert to fraction form
    78,026.26/116,969.11 = 28,071.23/x
  3. Step 3: Cross multiply
    78,026.26x = 116,969.11 × 28,071.23
  4. Step 4: Simplify right side
    78,026.26x = 3,283,466,789.71
  5. Step 5: Solve for x
    x = 3,283,466,789.71/78,026.26
  6. Step 6: Final answer
    x = 42,081.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.