Home / 72,713.56-100,345.96-40,450.75

Finding the Fourth Proportional to 72,713.56, 100,345.96 and 40,450.75

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Solution

The fourth proportional to 72,713.56, 100,345.96 and 40,450.75 is: 55,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,713.56 : 100,345.96 = 40,450.75 : x
  2. Step 2: Convert to fraction form
    72,713.56/100,345.96 = 40,450.75/x
  3. Step 3: Cross multiply
    72,713.56x = 100,345.96 × 40,450.75
  4. Step 4: Simplify right side
    72,713.56x = 4,059,069,341.47
  5. Step 5: Solve for x
    x = 4,059,069,341.47/72,713.56
  6. Step 6: Final answer
    x = 55,822.73

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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.