Home / 80,580.49-111,166.63-50,345.21

Finding the Fourth Proportional to 80,580.49, 111,166.63 and 50,345.21

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Solution

The fourth proportional to 80,580.49, 111,166.63 and 50,345.21 is: 69,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,580.49 : 111,166.63 = 50,345.21 : x
  2. Step 2: Convert to fraction form
    80,580.49/111,166.63 = 50,345.21/x
  3. Step 3: Cross multiply
    80,580.49x = 111,166.63 × 50,345.21
  4. Step 4: Simplify right side
    80,580.49x = 5,596,707,484.40
  5. Step 5: Solve for x
    x = 5,596,707,484.40/80,580.49
  6. Step 6: Final answer
    x = 69,454.87

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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.