Home / 47,640.87-65,744.19-26,420.09

Finding the Fourth Proportional to 47,640.87, 65,744.19 and 26,420.09

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Solution

The fourth proportional to 47,640.87, 65,744.19 and 26,420.09 is: 36,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,640.87 : 65,744.19 = 26,420.09 : x
  2. Step 2: Convert to fraction form
    47,640.87/65,744.19 = 26,420.09/x
  3. Step 3: Cross multiply
    47,640.87x = 65,744.19 × 26,420.09
  4. Step 4: Simplify right side
    47,640.87x = 1,736,967,088.06
  5. Step 5: Solve for x
    x = 1,736,967,088.06/47,640.87
  6. Step 6: Final answer
    x = 36,459.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.