Home / 77,106.48-106,405.56-43,571.76

Finding the Fourth Proportional to 77,106.48, 106,405.56 and 43,571.76

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Solution

The fourth proportional to 77,106.48, 106,405.56 and 43,571.76 is: 60,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,106.48 : 106,405.56 = 43,571.76 : x
  2. Step 2: Convert to fraction form
    77,106.48/106,405.56 = 43,571.76/x
  3. Step 3: Cross multiply
    77,106.48x = 106,405.56 × 43,571.76
  4. Step 4: Simplify right side
    77,106.48x = 4,636,277,522.99
  5. Step 5: Solve for x
    x = 4,636,277,522.99/77,106.48
  6. Step 6: Final answer
    x = 60,128.25

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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.