Home / 55,685.12-76,845.24-30,534.56

Finding the Fourth Proportional to 55,685.12, 76,845.24 and 30,534.56

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Solution

The fourth proportional to 55,685.12, 76,845.24 and 30,534.56 is: 42,137.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.12 : 76,845.24 = 30,534.56 : x
  2. Step 2: Convert to fraction form
    55,685.12/76,845.24 = 30,534.56/x
  3. Step 3: Cross multiply
    55,685.12x = 76,845.24 × 30,534.56
  4. Step 4: Simplify right side
    55,685.12x = 2,346,435,591.49
  5. Step 5: Solve for x
    x = 2,346,435,591.49/55,685.12
  6. Step 6: Final answer
    x = 42,137.57

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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.