Home / 77,617.14-107,085.87-47,391.54

Finding the Fourth Proportional to 77,617.14, 107,085.87 and 47,391.54

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Solution

The fourth proportional to 77,617.14, 107,085.87 and 47,391.54 is: 65,384.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,617.14 : 107,085.87 = 47,391.54 : x
  2. Step 2: Convert to fraction form
    77,617.14/107,085.87 = 47,391.54/x
  3. Step 3: Cross multiply
    77,617.14x = 107,085.87 × 47,391.54
  4. Step 4: Simplify right side
    77,617.14x = 5,074,964,291.54
  5. Step 5: Solve for x
    x = 5,074,964,291.54/77,617.14
  6. Step 6: Final answer
    x = 65,384.58

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1.5x scale

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.