Home / 55,305.45-82,972.76-15,865.74

Finding the Fourth Proportional to 55,305.45, 82,972.76 and 15,865.74

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Solution

The fourth proportional to 55,305.45, 82,972.76 and 15,865.74 is: 23,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,305.45 : 82,972.76 = 15,865.74 : x
  2. Step 2: Convert to fraction form
    55,305.45/82,972.76 = 15,865.74/x
  3. Step 3: Cross multiply
    55,305.45x = 82,972.76 × 15,865.74
  4. Step 4: Simplify right side
    55,305.45x = 1,316,424,157.91
  5. Step 5: Solve for x
    x = 1,316,424,157.91/55,305.45
  6. Step 6: Final answer
    x = 23,802.79

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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.