Home / 51,318.30-70,817.87-28,656.66

Finding the Fourth Proportional to 51,318.30, 70,817.87 and 28,656.66

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Solution

The fourth proportional to 51,318.30, 70,817.87 and 28,656.66 is: 39,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,318.30 : 70,817.87 = 28,656.66 : x
  2. Step 2: Convert to fraction form
    51,318.30/70,817.87 = 28,656.66/x
  3. Step 3: Cross multiply
    51,318.30x = 70,817.87 × 28,656.66
  4. Step 4: Simplify right side
    51,318.30x = 2,029,403,622.51
  5. Step 5: Solve for x
    x = 2,029,403,622.51/51,318.30
  6. Step 6: Final answer
    x = 39,545.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.