Home / 72,193.56-99,628.83-40,362.18

Finding the Fourth Proportional to 72,193.56, 99,628.83 and 40,362.18

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Solution

The fourth proportional to 72,193.56, 99,628.83 and 40,362.18 is: 55,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,193.56 : 99,628.83 = 40,362.18 : x
  2. Step 2: Convert to fraction form
    72,193.56/99,628.83 = 40,362.18/x
  3. Step 3: Cross multiply
    72,193.56x = 99,628.83 × 40,362.18
  4. Step 4: Simplify right side
    72,193.56x = 4,021,236,769.65
  5. Step 5: Solve for x
    x = 4,021,236,769.65/72,193.56
  6. Step 6: Final answer
    x = 55,700.77

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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.