Home / 77,356.12-106,748.16-43,822.12

Finding the Fourth Proportional to 77,356.12, 106,748.16 and 43,822.12

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Solution

The fourth proportional to 77,356.12, 106,748.16 and 43,822.12 is: 60,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,356.12 : 106,748.16 = 43,822.12 : x
  2. Step 2: Convert to fraction form
    77,356.12/106,748.16 = 43,822.12/x
  3. Step 3: Cross multiply
    77,356.12x = 106,748.16 × 43,822.12
  4. Step 4: Simplify right side
    77,356.12x = 4,677,930,677.30
  5. Step 5: Solve for x
    x = 4,677,930,677.30/77,356.12
  6. Step 6: Final answer
    x = 60,472.66

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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.