Home / 81,655.80-112,676.62-45,849.76

Finding the Fourth Proportional to 81,655.80, 112,676.62 and 45,849.76

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Solution

The fourth proportional to 81,655.80, 112,676.62 and 45,849.76 is: 63,267.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,655.80 : 112,676.62 = 45,849.76 : x
  2. Step 2: Convert to fraction form
    81,655.80/112,676.62 = 45,849.76/x
  3. Step 3: Cross multiply
    81,655.80x = 112,676.62 × 45,849.76
  4. Step 4: Simplify right side
    81,655.80x = 5,166,195,984.61
  5. Step 5: Solve for x
    x = 5,166,195,984.61/81,655.80
  6. Step 6: Final answer
    x = 63,267.96

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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.