Home / 72,890.93-109,270.78-26,132.87

Finding the Fourth Proportional to 72,890.93, 109,270.78 and 26,132.87

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Solution

The fourth proportional to 72,890.93, 109,270.78 and 26,132.87 is: 39,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,890.93 : 109,270.78 = 26,132.87 : x
  2. Step 2: Convert to fraction form
    72,890.93/109,270.78 = 26,132.87/x
  3. Step 3: Cross multiply
    72,890.93x = 109,270.78 × 26,132.87
  4. Step 4: Simplify right side
    72,890.93x = 2,855,559,088.54
  5. Step 5: Solve for x
    x = 2,855,559,088.54/72,890.93
  6. Step 6: Final answer
    x = 39,175.78

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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.