Home / 68,447.57-102,421.58-40,381.07

Finding the Fourth Proportional to 68,447.57, 102,421.58 and 40,381.07

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Solution

The fourth proportional to 68,447.57, 102,421.58 and 40,381.07 is: 60,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,447.57 : 102,421.58 = 40,381.07 : x
  2. Step 2: Convert to fraction form
    68,447.57/102,421.58 = 40,381.07/x
  3. Step 3: Cross multiply
    68,447.57x = 102,421.58 × 40,381.07
  4. Step 4: Simplify right side
    68,447.57x = 4,135,893,173.67
  5. Step 5: Solve for x
    x = 4,135,893,173.67/68,447.57
  6. Step 6: Final answer
    x = 60,424.25

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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.