Home / 55,699.20-76,865.28-30,205.70

Finding the Fourth Proportional to 55,699.20, 76,865.28 and 30,205.70

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Solution

The fourth proportional to 55,699.20, 76,865.28 and 30,205.70 is: 41,684.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,699.20 : 76,865.28 = 30,205.70 : x
  2. Step 2: Convert to fraction form
    55,699.20/76,865.28 = 30,205.70/x
  3. Step 3: Cross multiply
    55,699.20x = 76,865.28 × 30,205.70
  4. Step 4: Simplify right side
    55,699.20x = 2,321,769,588.10
  5. Step 5: Solve for x
    x = 2,321,769,588.10/55,699.20
  6. Step 6: Final answer
    x = 41,684.07

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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.