Home / 87,946.77-131,948.40-28,768.98

Finding the Fourth Proportional to 87,946.77, 131,948.40 and 28,768.98

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Solution

The fourth proportional to 87,946.77, 131,948.40 and 28,768.98 is: 43,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,946.77 : 131,948.40 = 28,768.98 : x
  2. Step 2: Convert to fraction form
    87,946.77/131,948.40 = 28,768.98/x
  3. Step 3: Cross multiply
    87,946.77x = 131,948.40 × 28,768.98
  4. Step 4: Simplify right side
    87,946.77x = 3,796,020,880.63
  5. Step 5: Solve for x
    x = 3,796,020,880.63/87,946.77
  6. Step 6: Final answer
    x = 43,162.71

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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.