Home / 81,203.03-112,060.63-45,394.55

Finding the Fourth Proportional to 81,203.03, 112,060.63 and 45,394.55

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Solution

The fourth proportional to 81,203.03, 112,060.63 and 45,394.55 is: 62,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,203.03 : 112,060.63 = 45,394.55 : x
  2. Step 2: Convert to fraction form
    81,203.03/112,060.63 = 45,394.55/x
  3. Step 3: Cross multiply
    81,203.03x = 112,060.63 × 45,394.55
  4. Step 4: Simplify right side
    81,203.03x = 5,086,941,871.57
  5. Step 5: Solve for x
    x = 5,086,941,871.57/81,203.03
  6. Step 6: Final answer
    x = 62,644.73

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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.