Home / 77,140.56-106,422.56-50,273.28

Finding the Fourth Proportional to 77,140.56, 106,422.56 and 50,273.28

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Solution

The fourth proportional to 77,140.56, 106,422.56 and 50,273.28 is: 69,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.56 : 106,422.56 = 50,273.28 : x
  2. Step 2: Convert to fraction form
    77,140.56/106,422.56 = 50,273.28/x
  3. Step 3: Cross multiply
    77,140.56x = 106,422.56 × 50,273.28
  4. Step 4: Simplify right side
    77,140.56x = 5,350,211,157.20
  5. Step 5: Solve for x
    x = 5,350,211,157.20/77,140.56
  6. Step 6: Final answer
    x = 69,356.65

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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.