Home / 72,755.56-100,316.79-49,796.45

Finding the Fourth Proportional to 72,755.56, 100,316.79 and 49,796.45

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Solution

The fourth proportional to 72,755.56, 100,316.79 and 49,796.45 is: 68,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,755.56 : 100,316.79 = 49,796.45 : x
  2. Step 2: Convert to fraction form
    72,755.56/100,316.79 = 49,796.45/x
  3. Step 3: Cross multiply
    72,755.56x = 100,316.79 × 49,796.45
  4. Step 4: Simplify right side
    72,755.56x = 4,995,420,017.40
  5. Step 5: Solve for x
    x = 4,995,420,017.40/72,755.56
  6. Step 6: Final answer
    x = 68,660.32

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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.