Home / 68,003.10-102,038.18-30,589.65

Finding the Fourth Proportional to 68,003.10, 102,038.18 and 30,589.65

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Solution

The fourth proportional to 68,003.10, 102,038.18 and 30,589.65 is: 45,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,003.10 : 102,038.18 = 30,589.65 : x
  2. Step 2: Convert to fraction form
    68,003.10/102,038.18 = 30,589.65/x
  3. Step 3: Cross multiply
    68,003.10x = 102,038.18 × 30,589.65
  4. Step 4: Simplify right side
    68,003.10x = 3,121,312,059.89
  5. Step 5: Solve for x
    x = 3,121,312,059.89/68,003.10
  6. Step 6: Final answer
    x = 45,899.56

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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.