Home / 72,362.36-99,858.42-40,531.79

Finding the Fourth Proportional to 72,362.36, 99,858.42 and 40,531.79

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Solution

The fourth proportional to 72,362.36, 99,858.42 and 40,531.79 is: 55,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,362.36 : 99,858.42 = 40,531.79 : x
  2. Step 2: Convert to fraction form
    72,362.36/99,858.42 = 40,531.79/x
  3. Step 3: Cross multiply
    72,362.36x = 99,858.42 × 40,531.79
  4. Step 4: Simplify right side
    72,362.36x = 4,047,440,758.82
  5. Step 5: Solve for x
    x = 4,047,440,758.82/72,362.36
  6. Step 6: Final answer
    x = 55,932.95

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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.