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Finding the Fourth Proportional to 81,525.51, 112,506.37 and 49,255.64

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Solution

The fourth proportional to 81,525.51, 112,506.37 and 49,255.64 is: 67,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,525.51 : 112,506.37 = 49,255.64 : x
  2. Step 2: Convert to fraction form
    81,525.51/112,506.37 = 49,255.64/x
  3. Step 3: Cross multiply
    81,525.51x = 112,506.37 × 49,255.64
  4. Step 4: Simplify right side
    81,525.51x = 5,541,573,627.50
  5. Step 5: Solve for x
    x = 5,541,573,627.50/81,525.51
  6. Step 6: Final answer
    x = 67,973.49

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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.