Home / 43,731.06-65,629.40-31,079.28

Finding the Fourth Proportional to 43,731.06, 65,629.40 and 31,079.28

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Solution

The fourth proportional to 43,731.06, 65,629.40 and 31,079.28 is: 46,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,731.06 : 65,629.40 = 31,079.28 : x
  2. Step 2: Convert to fraction form
    43,731.06/65,629.40 = 31,079.28/x
  3. Step 3: Cross multiply
    43,731.06x = 65,629.40 × 31,079.28
  4. Step 4: Simplify right side
    43,731.06x = 2,039,714,498.83
  5. Step 5: Solve for x
    x = 2,039,714,498.83/43,731.06
  6. Step 6: Final answer
    x = 46,642.24

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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.