Home / 272,024.83-408,036.43-72,345.05

Finding the Fourth Proportional to 272,024.83, 408,036.43 and 72,345.05

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Solution

The fourth proportional to 272,024.83, 408,036.43 and 72,345.05 is: 108,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,024.83 : 408,036.43 = 72,345.05 : x
  2. Step 2: Convert to fraction form
    272,024.83/408,036.43 = 72,345.05/x
  3. Step 3: Cross multiply
    272,024.83x = 408,036.43 × 72,345.05
  4. Step 4: Simplify right side
    272,024.83x = 29,519,415,930.17
  5. Step 5: Solve for x
    x = 29,519,415,930.17/272,024.83
  6. Step 6: Final answer
    x = 108,517.36

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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.