Home / 47,175.36-65,128.86-31,281.27

Finding the Fourth Proportional to 47,175.36, 65,128.86 and 31,281.27

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Solution

The fourth proportional to 47,175.36, 65,128.86 and 31,281.27 is: 43,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,175.36 : 65,128.86 = 31,281.27 : x
  2. Step 2: Convert to fraction form
    47,175.36/65,128.86 = 31,281.27/x
  3. Step 3: Cross multiply
    47,175.36x = 65,128.86 × 31,281.27
  4. Step 4: Simplify right side
    47,175.36x = 2,037,313,454.45
  5. Step 5: Solve for x
    x = 2,037,313,454.45/47,175.36
  6. Step 6: Final answer
    x = 43,185.97

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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.