Home / 55,685.38-76,849.49-30,534.88

Finding the Fourth Proportional to 55,685.38, 76,849.49 and 30,534.88

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Solution

The fourth proportional to 55,685.38, 76,849.49 and 30,534.88 is: 42,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.38 : 76,849.49 = 30,534.88 : x
  2. Step 2: Convert to fraction form
    55,685.38/76,849.49 = 30,534.88/x
  3. Step 3: Cross multiply
    55,685.38x = 76,849.49 × 30,534.88
  4. Step 4: Simplify right side
    55,685.38x = 2,346,589,955.21
  5. Step 5: Solve for x
    x = 2,346,589,955.21/55,685.38
  6. Step 6: Final answer
    x = 42,140.14

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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.