Home / 80,870.34-111,604.50-45,060.38

Finding the Fourth Proportional to 80,870.34, 111,604.50 and 45,060.38

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Solution

The fourth proportional to 80,870.34, 111,604.50 and 45,060.38 is: 62,185.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,870.34 : 111,604.50 = 45,060.38 : x
  2. Step 2: Convert to fraction form
    80,870.34/111,604.50 = 45,060.38/x
  3. Step 3: Cross multiply
    80,870.34x = 111,604.50 × 45,060.38
  4. Step 4: Simplify right side
    80,870.34x = 5,028,940,621.69
  5. Step 5: Solve for x
    x = 5,028,940,621.69/80,870.34
  6. Step 6: Final answer
    x = 62,185.23

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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.