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Finding the Fourth Proportional to 45,457.76, 68,191.04 and 15,493.12

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Solution

The fourth proportional to 45,457.76, 68,191.04 and 15,493.12 is: 23,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,457.76 : 68,191.04 = 15,493.12 : x
  2. Step 2: Convert to fraction form
    45,457.76/68,191.04 = 15,493.12/x
  3. Step 3: Cross multiply
    45,457.76x = 68,191.04 × 15,493.12
  4. Step 4: Simplify right side
    45,457.76x = 1,056,492,173.90
  5. Step 5: Solve for x
    x = 1,056,492,173.90/45,457.76
  6. Step 6: Final answer
    x = 23,241.19

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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.