Home / 80,815.77-111,526.85-45,006.68

Finding the Fourth Proportional to 80,815.77, 111,526.85 and 45,006.68

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Solution

The fourth proportional to 80,815.77, 111,526.85 and 45,006.68 is: 62,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,815.77 : 111,526.85 = 45,006.68 : x
  2. Step 2: Convert to fraction form
    80,815.77/111,526.85 = 45,006.68/x
  3. Step 3: Cross multiply
    80,815.77x = 111,526.85 × 45,006.68
  4. Step 4: Simplify right side
    80,815.77x = 5,019,453,249.36
  5. Step 5: Solve for x
    x = 5,019,453,249.36/80,815.77
  6. Step 6: Final answer
    x = 62,109.82

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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.