Home / 78,297.33-117,407.73-54,616.22

Finding the Fourth Proportional to 78,297.33, 117,407.73 and 54,616.22

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Solution

The fourth proportional to 78,297.33, 117,407.73 and 54,616.22 is: 81,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,297.33 : 117,407.73 = 54,616.22 : x
  2. Step 2: Convert to fraction form
    78,297.33/117,407.73 = 54,616.22/x
  3. Step 3: Cross multiply
    78,297.33x = 117,407.73 × 54,616.22
  4. Step 4: Simplify right side
    78,297.33x = 6,412,366,822.63
  5. Step 5: Solve for x
    x = 6,412,366,822.63/78,297.33
  6. Step 6: Final answer
    x = 81,897.64

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1.5x scale

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.