Home / 82,438.43-123,677.13-65,634.98

Finding the Fourth Proportional to 82,438.43, 123,677.13 and 65,634.98

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Solution

The fourth proportional to 82,438.43, 123,677.13 and 65,634.98 is: 98,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,438.43 : 123,677.13 = 65,634.98 : x
  2. Step 2: Convert to fraction form
    82,438.43/123,677.13 = 65,634.98/x
  3. Step 3: Cross multiply
    82,438.43x = 123,677.13 × 65,634.98
  4. Step 4: Simplify right side
    82,438.43x = 8,117,545,581.75
  5. Step 5: Solve for x
    x = 8,117,545,581.75/82,438.43
  6. Step 6: Final answer
    x = 98,467.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.