Home / 79,037.85-109,022.35-55,155.81

Finding the Fourth Proportional to 79,037.85, 109,022.35 and 55,155.81

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Solution

The fourth proportional to 79,037.85, 109,022.35 and 55,155.81 is: 76,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,037.85 : 109,022.35 = 55,155.81 : x
  2. Step 2: Convert to fraction form
    79,037.85/109,022.35 = 55,155.81/x
  3. Step 3: Cross multiply
    79,037.85x = 109,022.35 × 55,155.81
  4. Step 4: Simplify right side
    79,037.85x = 6,013,216,022.35
  5. Step 5: Solve for x
    x = 6,013,216,022.35/79,037.85
  6. Step 6: Final answer
    x = 76,080.21

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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.