Home / 87,973.92-131,946.12-31,803.36

Finding the Fourth Proportional to 87,973.92, 131,946.12 and 31,803.36

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Solution

The fourth proportional to 87,973.92, 131,946.12 and 31,803.36 is: 47,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,973.92 : 131,946.12 = 31,803.36 : x
  2. Step 2: Convert to fraction form
    87,973.92/131,946.12 = 31,803.36/x
  3. Step 3: Cross multiply
    87,973.92x = 131,946.12 × 31,803.36
  4. Step 4: Simplify right side
    87,973.92x = 4,196,329,954.96
  5. Step 5: Solve for x
    x = 4,196,329,954.96/87,973.92
  6. Step 6: Final answer
    x = 47,699.70

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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.