Home / 52,116.90-78,175.08-12,673.98

Finding the Fourth Proportional to 52,116.90, 78,175.08 and 12,673.98

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Solution

The fourth proportional to 52,116.90, 78,175.08 and 12,673.98 is: 19,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,116.90 : 78,175.08 = 12,673.98 : x
  2. Step 2: Convert to fraction form
    52,116.90/78,175.08 = 12,673.98/x
  3. Step 3: Cross multiply
    52,116.90x = 78,175.08 × 12,673.98
  4. Step 4: Simplify right side
    52,116.90x = 990,789,400.42
  5. Step 5: Solve for x
    x = 990,789,400.42/52,116.90
  6. Step 6: Final answer
    x = 19,010.90

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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.