Home / 52,312.20-78,457.32-17,243.64

Finding the Fourth Proportional to 52,312.20, 78,457.32 and 17,243.64

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Solution

The fourth proportional to 52,312.20, 78,457.32 and 17,243.64 is: 25,861.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,312.20 : 78,457.32 = 17,243.64 : x
  2. Step 2: Convert to fraction form
    52,312.20/78,457.32 = 17,243.64/x
  3. Step 3: Cross multiply
    52,312.20x = 78,457.32 × 17,243.64
  4. Step 4: Simplify right side
    52,312.20x = 1,352,889,781.44
  5. Step 5: Solve for x
    x = 1,352,889,781.44/52,312.20
  6. Step 6: Final answer
    x = 25,861.84

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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.