Home / 72,362.13-99,859.73-40,530.95

Finding the Fourth Proportional to 72,362.13, 99,859.73 and 40,530.95

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Solution

The fourth proportional to 72,362.13, 99,859.73 and 40,530.95 is: 55,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,362.13 : 99,859.73 = 40,530.95 : x
  2. Step 2: Convert to fraction form
    72,362.13/99,859.73 = 40,530.95/x
  3. Step 3: Cross multiply
    72,362.13x = 99,859.73 × 40,530.95
  4. Step 4: Simplify right side
    72,362.13x = 4,047,409,723.64
  5. Step 5: Solve for x
    x = 4,047,409,723.64/72,362.13
  6. Step 6: Final answer
    x = 55,932.71

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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.