Home / 55,090.16-76,022.28-29,939.12

Finding the Fourth Proportional to 55,090.16, 76,022.28 and 29,939.12

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Solution

The fourth proportional to 55,090.16, 76,022.28 and 29,939.12 is: 41,314.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,090.16 : 76,022.28 = 29,939.12 : x
  2. Step 2: Convert to fraction form
    55,090.16/76,022.28 = 29,939.12/x
  3. Step 3: Cross multiply
    55,090.16x = 76,022.28 × 29,939.12
  4. Step 4: Simplify right side
    55,090.16x = 2,276,040,163.59
  5. Step 5: Solve for x
    x = 2,276,040,163.59/55,090.16
  6. Step 6: Final answer
    x = 41,314.82

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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.