Home / 72,795.66-100,456.92-40,964.46

Finding the Fourth Proportional to 72,795.66, 100,456.92 and 40,964.46

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Solution

The fourth proportional to 72,795.66, 100,456.92 and 40,964.46 is: 56,530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,795.66 : 100,456.92 = 40,964.46 : x
  2. Step 2: Convert to fraction form
    72,795.66/100,456.92 = 40,964.46/x
  3. Step 3: Cross multiply
    72,795.66x = 100,456.92 × 40,964.46
  4. Step 4: Simplify right side
    72,795.66x = 4,115,163,481.06
  5. Step 5: Solve for x
    x = 4,115,163,481.06/72,795.66
  6. Step 6: Final answer
    x = 56,530.34

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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.