Home / 272,623.77-408,904.38-72,959.72

Finding the Fourth Proportional to 272,623.77, 408,904.38 and 72,959.72

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Solution

The fourth proportional to 272,623.77, 408,904.38 and 72,959.72 is: 109,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,623.77 : 408,904.38 = 72,959.72 : x
  2. Step 2: Convert to fraction form
    272,623.77/408,904.38 = 72,959.72/x
  3. Step 3: Cross multiply
    272,623.77x = 408,904.38 × 72,959.72
  4. Step 4: Simplify right side
    272,623.77x = 29,833,547,027.05
  5. Step 5: Solve for x
    x = 29,833,547,027.05/272,623.77
  6. Step 6: Final answer
    x = 109,431.20

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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.