Home / 82,209.65-123,315.42-28,903.19

Finding the Fourth Proportional to 82,209.65, 123,315.42 and 28,903.19

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Solution

The fourth proportional to 82,209.65, 123,315.42 and 28,903.19 is: 43,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,209.65 : 123,315.42 = 28,903.19 : x
  2. Step 2: Convert to fraction form
    82,209.65/123,315.42 = 28,903.19/x
  3. Step 3: Cross multiply
    82,209.65x = 123,315.42 × 28,903.19
  4. Step 4: Simplify right side
    82,209.65x = 3,564,208,397.61
  5. Step 5: Solve for x
    x = 3,564,208,397.61/82,209.65
  6. Step 6: Final answer
    x = 43,355.11

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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.