Home / 52,204.82-78,307.23-12,761.87

Finding the Fourth Proportional to 52,204.82, 78,307.23 and 12,761.87

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Solution

The fourth proportional to 52,204.82, 78,307.23 and 12,761.87 is: 19,142.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,204.82 : 78,307.23 = 12,761.87 : x
  2. Step 2: Convert to fraction form
    52,204.82/78,307.23 = 12,761.87/x
  3. Step 3: Cross multiply
    52,204.82x = 78,307.23 × 12,761.87
  4. Step 4: Simplify right side
    52,204.82x = 999,346,689.32
  5. Step 5: Solve for x
    x = 999,346,689.32/52,204.82
  6. Step 6: Final answer
    x = 19,142.81

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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.