Home / 77,954.56-107,576.97-42,144.55

Finding the Fourth Proportional to 77,954.56, 107,576.97 and 42,144.55

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Solution

The fourth proportional to 77,954.56, 107,576.97 and 42,144.55 is: 58,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,954.56 : 107,576.97 = 42,144.55 : x
  2. Step 2: Convert to fraction form
    77,954.56/107,576.97 = 42,144.55/x
  3. Step 3: Cross multiply
    77,954.56x = 107,576.97 × 42,144.55
  4. Step 4: Simplify right side
    77,954.56x = 4,533,782,991.01
  5. Step 5: Solve for x
    x = 4,533,782,991.01/77,954.56
  6. Step 6: Final answer
    x = 58,159.30

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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.