Home / 72,859-109,278.92-22,939.36

Finding the Fourth Proportional to 72,859, 109,278.92 and 22,939.36

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Solution

The fourth proportional to 72,859, 109,278.92 and 22,939.36 is: 34,406.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,859 : 109,278.92 = 22,939.36 : x
  2. Step 2: Convert to fraction form
    72,859/109,278.92 = 22,939.36/x
  3. Step 3: Cross multiply
    72,859x = 109,278.92 × 22,939.36
  4. Step 4: Simplify right side
    72,859x = 2,506,788,486.29
  5. Step 5: Solve for x
    x = 2,506,788,486.29/72,859
  6. Step 6: Final answer
    x = 34,406.02

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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.