Home / 72,141.12-99,532.80-43,836.48

Finding the Fourth Proportional to 72,141.12, 99,532.80 and 43,836.48

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Solution

The fourth proportional to 72,141.12, 99,532.80 and 43,836.48 is: 60,481.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,141.12 : 99,532.80 = 43,836.48 : x
  2. Step 2: Convert to fraction form
    72,141.12/99,532.80 = 43,836.48/x
  3. Step 3: Cross multiply
    72,141.12x = 99,532.80 × 43,836.48
  4. Step 4: Simplify right side
    72,141.12x = 4,363,167,596.54
  5. Step 5: Solve for x
    x = 4,363,167,596.54/72,141.12
  6. Step 6: Final answer
    x = 60,481.01

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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.