Home / 45,887.15-68,816.14-31,190.51

Finding the Fourth Proportional to 45,887.15, 68,816.14 and 31,190.51

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Solution

The fourth proportional to 45,887.15, 68,816.14 and 31,190.51 is: 46,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,887.15 : 68,816.14 = 31,190.51 : x
  2. Step 2: Convert to fraction form
    45,887.15/68,816.14 = 31,190.51/x
  3. Step 3: Cross multiply
    45,887.15x = 68,816.14 × 31,190.51
  4. Step 4: Simplify right side
    45,887.15x = 2,146,410,502.83
  5. Step 5: Solve for x
    x = 2,146,410,502.83/45,887.15
  6. Step 6: Final answer
    x = 46,775.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.