Home / 85,330.73-117,732.79-55,117.33

Finding the Fourth Proportional to 85,330.73, 117,732.79 and 55,117.33

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Solution

The fourth proportional to 85,330.73, 117,732.79 and 55,117.33 is: 76,046.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,330.73 : 117,732.79 = 55,117.33 : x
  2. Step 2: Convert to fraction form
    85,330.73/117,732.79 = 55,117.33/x
  3. Step 3: Cross multiply
    85,330.73x = 117,732.79 × 55,117.33
  4. Step 4: Simplify right side
    85,330.73x = 6,489,116,812.82
  5. Step 5: Solve for x
    x = 6,489,116,812.82/85,330.73
  6. Step 6: Final answer
    x = 76,046.66

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1.5x scale

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.