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Finding the Fourth Proportional to 41,145.40, 61,746.90 and 26,390.20

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Solution

The fourth proportional to 41,145.40, 61,746.90 and 26,390.20 is: 39,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,145.40 : 61,746.90 = 26,390.20 : x
  2. Step 2: Convert to fraction form
    41,145.40/61,746.90 = 26,390.20/x
  3. Step 3: Cross multiply
    41,145.40x = 61,746.90 × 26,390.20
  4. Step 4: Simplify right side
    41,145.40x = 1,629,513,040.38
  5. Step 5: Solve for x
    x = 1,629,513,040.38/41,145.40
  6. Step 6: Final answer
    x = 39,603.77

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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.