Home / 45,887.09-68,816.05-31,190.45

Finding the Fourth Proportional to 45,887.09, 68,816.05 and 31,190.45

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Solution

The fourth proportional to 45,887.09, 68,816.05 and 31,190.45 is: 46,775.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,887.09 : 68,816.05 = 31,190.45 : x
  2. Step 2: Convert to fraction form
    45,887.09/68,816.05 = 31,190.45/x
  3. Step 3: Cross multiply
    45,887.09x = 68,816.05 × 31,190.45
  4. Step 4: Simplify right side
    45,887.09x = 2,146,403,566.72
  5. Step 5: Solve for x
    x = 2,146,403,566.72/45,887.09
  6. Step 6: Final answer
    x = 46,775.76

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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.