Home / 77,947.30-107,555.34-43,954.30

Finding the Fourth Proportional to 77,947.30, 107,555.34 and 43,954.30

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Solution

The fourth proportional to 77,947.30, 107,555.34 and 43,954.30 is: 60,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,947.30 : 107,555.34 = 43,954.30 : x
  2. Step 2: Convert to fraction form
    77,947.30/107,555.34 = 43,954.30/x
  3. Step 3: Cross multiply
    77,947.30x = 107,555.34 × 43,954.30
  4. Step 4: Simplify right side
    77,947.30x = 4,727,519,680.96
  5. Step 5: Solve for x
    x = 4,727,519,680.96/77,947.30
  6. Step 6: Final answer
    x = 60,650.20

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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.