Home / 55,278.21-76,284.15-30,127.71

Finding the Fourth Proportional to 55,278.21, 76,284.15 and 30,127.71

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Solution

The fourth proportional to 55,278.21, 76,284.15 and 30,127.71 is: 41,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.21 : 76,284.15 = 30,127.71 : x
  2. Step 2: Convert to fraction form
    55,278.21/76,284.15 = 30,127.71/x
  3. Step 3: Cross multiply
    55,278.21x = 76,284.15 × 30,127.71
  4. Step 4: Simplify right side
    55,278.21x = 2,298,266,748.80
  5. Step 5: Solve for x
    x = 2,298,266,748.80/55,278.21
  6. Step 6: Final answer
    x = 41,576.36

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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.