Home / 78,899.73-118,350.64-26,309.23

Finding the Fourth Proportional to 78,899.73, 118,350.64 and 26,309.23

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Solution

The fourth proportional to 78,899.73, 118,350.64 and 26,309.23 is: 39,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,899.73 : 118,350.64 = 26,309.23 : x
  2. Step 2: Convert to fraction form
    78,899.73/118,350.64 = 26,309.23/x
  3. Step 3: Cross multiply
    78,899.73x = 118,350.64 × 26,309.23
  4. Step 4: Simplify right side
    78,899.73x = 3,113,714,208.41
  5. Step 5: Solve for x
    x = 3,113,714,208.41/78,899.73
  6. Step 6: Final answer
    x = 39,464.19

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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.