Home / 52,074.26-78,111.40-12,631.04

Finding the Fourth Proportional to 52,074.26, 78,111.40 and 12,631.04

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Solution

The fourth proportional to 52,074.26, 78,111.40 and 12,631.04 is: 18,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,074.26 : 78,111.40 = 12,631.04 : x
  2. Step 2: Convert to fraction form
    52,074.26/78,111.40 = 12,631.04/x
  3. Step 3: Cross multiply
    52,074.26x = 78,111.40 × 12,631.04
  4. Step 4: Simplify right side
    52,074.26x = 986,628,217.86
  5. Step 5: Solve for x
    x = 986,628,217.86/52,074.26
  6. Step 6: Final answer
    x = 18,946.56

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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.