Home / 77,018.45-106,286.18-45,187.88

Finding the Fourth Proportional to 77,018.45, 106,286.18 and 45,187.88

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Solution

The fourth proportional to 77,018.45, 106,286.18 and 45,187.88 is: 62,359.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,018.45 : 106,286.18 = 45,187.88 : x
  2. Step 2: Convert to fraction form
    77,018.45/106,286.18 = 45,187.88/x
  3. Step 3: Cross multiply
    77,018.45x = 106,286.18 × 45,187.88
  4. Step 4: Simplify right side
    77,018.45x = 4,802,846,390.13
  5. Step 5: Solve for x
    x = 4,802,846,390.13/77,018.45
  6. Step 6: Final answer
    x = 62,359.69

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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.