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Finding the Fourth Proportional to 81,383.88, 112,316.82 and 45,573.24

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Solution

The fourth proportional to 81,383.88, 112,316.82 and 45,573.24 is: 62,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,383.88 : 112,316.82 = 45,573.24 : x
  2. Step 2: Convert to fraction form
    81,383.88/112,316.82 = 45,573.24/x
  3. Step 3: Cross multiply
    81,383.88x = 112,316.82 × 45,573.24
  4. Step 4: Simplify right side
    81,383.88x = 5,118,641,393.90
  5. Step 5: Solve for x
    x = 5,118,641,393.90/81,383.88
  6. Step 6: Final answer
    x = 62,895.03

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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.