Home / 77,030.90-115,546.35-27,110.60

Finding the Fourth Proportional to 77,030.90, 115,546.35 and 27,110.60

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Solution

The fourth proportional to 77,030.90, 115,546.35 and 27,110.60 is: 40,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,030.90 : 115,546.35 = 27,110.60 : x
  2. Step 2: Convert to fraction form
    77,030.90/115,546.35 = 27,110.60/x
  3. Step 3: Cross multiply
    77,030.90x = 115,546.35 × 27,110.60
  4. Step 4: Simplify right side
    77,030.90x = 3,132,530,876.31
  5. Step 5: Solve for x
    x = 3,132,530,876.31/77,030.90
  6. Step 6: Final answer
    x = 40,665.90

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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.