Home / 77,971.56-107,570.52-43,972.20

Finding the Fourth Proportional to 77,971.56, 107,570.52 and 43,972.20

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Solution

The fourth proportional to 77,971.56, 107,570.52 and 43,972.20 is: 60,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,971.56 : 107,570.52 = 43,972.20 : x
  2. Step 2: Convert to fraction form
    77,971.56/107,570.52 = 43,972.20/x
  3. Step 3: Cross multiply
    77,971.56x = 107,570.52 × 43,972.20
  4. Step 4: Simplify right side
    77,971.56x = 4,730,112,419.54
  5. Step 5: Solve for x
    x = 4,730,112,419.54/77,971.56
  6. Step 6: Final answer
    x = 60,664.59

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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.