Home / 77,009.76-106,236.96-50,142.48

Finding the Fourth Proportional to 77,009.76, 106,236.96 and 50,142.48

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Solution

The fourth proportional to 77,009.76, 106,236.96 and 50,142.48 is: 69,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,009.76 : 106,236.96 = 50,142.48 : x
  2. Step 2: Convert to fraction form
    77,009.76/106,236.96 = 50,142.48/x
  3. Step 3: Cross multiply
    77,009.76x = 106,236.96 × 50,142.48
  4. Step 4: Simplify right side
    77,009.76x = 5,326,984,642.06
  5. Step 5: Solve for x
    x = 5,326,984,642.06/77,009.76
  6. Step 6: Final answer
    x = 69,172.85

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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.