Home / 77,127.06-106,403.94-50,259.78

Finding the Fourth Proportional to 77,127.06, 106,403.94 and 50,259.78

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Solution

The fourth proportional to 77,127.06, 106,403.94 and 50,259.78 is: 69,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,127.06 : 106,403.94 = 50,259.78 : x
  2. Step 2: Convert to fraction form
    77,127.06/106,403.94 = 50,259.78/x
  3. Step 3: Cross multiply
    77,127.06x = 106,403.94 × 50,259.78
  4. Step 4: Simplify right side
    77,127.06x = 5,347,838,615.53
  5. Step 5: Solve for x
    x = 5,347,838,615.53/77,127.06
  6. Step 6: Final answer
    x = 69,338.03

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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.