Home / 39,878.72-59,886.32-26,636.81

Finding the Fourth Proportional to 39,878.72, 59,886.32 and 26,636.81

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Solution

The fourth proportional to 39,878.72, 59,886.32 and 26,636.81 is: 40,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,878.72 : 59,886.32 = 26,636.81 : x
  2. Step 2: Convert to fraction form
    39,878.72/59,886.32 = 26,636.81/x
  3. Step 3: Cross multiply
    39,878.72x = 59,886.32 × 26,636.81
  4. Step 4: Simplify right side
    39,878.72x = 1,595,180,543.97
  5. Step 5: Solve for x
    x = 1,595,180,543.97/39,878.72
  6. Step 6: Final answer
    x = 40,000.80

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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.