Home / 272,657.09-408,979.63-72,977.46

Finding the Fourth Proportional to 272,657.09, 408,979.63 and 72,977.46

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Solution

The fourth proportional to 272,657.09, 408,979.63 and 72,977.46 is: 109,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,657.09 : 408,979.63 = 72,977.46 : x
  2. Step 2: Convert to fraction form
    272,657.09/408,979.63 = 72,977.46/x
  3. Step 3: Cross multiply
    272,657.09x = 408,979.63 × 72,977.46
  4. Step 4: Simplify right side
    272,657.09x = 29,846,293,146.69
  5. Step 5: Solve for x
    x = 29,846,293,146.69/272,657.09
  6. Step 6: Final answer
    x = 109,464.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.