Home / 57,086.05-85,681.02-30,454.62

Finding the Fourth Proportional to 57,086.05, 85,681.02 and 30,454.62

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Solution

The fourth proportional to 57,086.05, 85,681.02 and 30,454.62 is: 45,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,086.05 : 85,681.02 = 30,454.62 : x
  2. Step 2: Convert to fraction form
    57,086.05/85,681.02 = 30,454.62/x
  3. Step 3: Cross multiply
    57,086.05x = 85,681.02 × 30,454.62
  4. Step 4: Simplify right side
    57,086.05x = 2,609,382,687.56
  5. Step 5: Solve for x
    x = 2,609,382,687.56/57,086.05
  6. Step 6: Final answer
    x = 45,709.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.