Home / 81,631.92-112,651.92-45,821.96

Finding the Fourth Proportional to 81,631.92, 112,651.92 and 45,821.96

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Solution

The fourth proportional to 81,631.92, 112,651.92 and 45,821.96 is: 63,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,631.92 : 112,651.92 = 45,821.96 : x
  2. Step 2: Convert to fraction form
    81,631.92/112,651.92 = 45,821.96/x
  3. Step 3: Cross multiply
    81,631.92x = 112,651.92 × 45,821.96
  4. Step 4: Simplify right side
    81,631.92x = 5,161,931,772.16
  5. Step 5: Solve for x
    x = 5,161,931,772.16/81,631.92
  6. Step 6: Final answer
    x = 63,234.23

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1.5x scale

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.