Home / 40,562.13-55,991.14-30,519.77

Finding the Fourth Proportional to 40,562.13, 55,991.14 and 30,519.77

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Solution

The fourth proportional to 40,562.13, 55,991.14 and 30,519.77 is: 42,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,562.13 : 55,991.14 = 30,519.77 : x
  2. Step 2: Convert to fraction form
    40,562.13/55,991.14 = 30,519.77/x
  3. Step 3: Cross multiply
    40,562.13x = 55,991.14 × 30,519.77
  4. Step 4: Simplify right side
    40,562.13x = 1,708,836,714.84
  5. Step 5: Solve for x
    x = 1,708,836,714.84/40,562.13
  6. Step 6: Final answer
    x = 42,128.87

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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.