Home / 81,566.42-112,496.73-67,394.66

Finding the Fourth Proportional to 81,566.42, 112,496.73 and 67,394.66

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Solution

The fourth proportional to 81,566.42, 112,496.73 and 67,394.66 is: 92,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566.42 : 112,496.73 = 67,394.66 : x
  2. Step 2: Convert to fraction form
    81,566.42/112,496.73 = 67,394.66/x
  3. Step 3: Cross multiply
    81,566.42x = 112,496.73 × 67,394.66
  4. Step 4: Simplify right side
    81,566.42x = 7,581,678,869.46
  5. Step 5: Solve for x
    x = 7,581,678,869.46/81,566.42
  6. Step 6: Final answer
    x = 92,950.98

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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.