Home / 68,510.07-102,767.31-18,590.04

Finding the Fourth Proportional to 68,510.07, 102,767.31 and 18,590.04

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Solution

The fourth proportional to 68,510.07, 102,767.31 and 18,590.04 is: 27,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,510.07 : 102,767.31 = 18,590.04 : x
  2. Step 2: Convert to fraction form
    68,510.07/102,767.31 = 18,590.04/x
  3. Step 3: Cross multiply
    68,510.07x = 102,767.31 × 18,590.04
  4. Step 4: Simplify right side
    68,510.07x = 1,910,448,403.59
  5. Step 5: Solve for x
    x = 1,910,448,403.59/68,510.07
  6. Step 6: Final answer
    x = 27,885.66

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1.5x scale

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.