Home / 80,814.77-111,525.47-45,005.68

Finding the Fourth Proportional to 80,814.77, 111,525.47 and 45,005.68

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Solution

The fourth proportional to 80,814.77, 111,525.47 and 45,005.68 is: 62,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,814.77 : 111,525.47 = 45,005.68 : x
  2. Step 2: Convert to fraction form
    80,814.77/111,525.47 = 45,005.68/x
  3. Step 3: Cross multiply
    80,814.77x = 111,525.47 × 45,005.68
  4. Step 4: Simplify right side
    80,814.77x = 5,019,279,950.98
  5. Step 5: Solve for x
    x = 5,019,279,950.98/80,814.77
  6. Step 6: Final answer
    x = 62,108.45

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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.