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Finding the Fourth Proportional to 57,069.63, 85,629.02 and 30,768.26

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Solution

The fourth proportional to 57,069.63, 85,629.02 and 30,768.26 is: 46,165.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,069.63 : 85,629.02 = 30,768.26 : x
  2. Step 2: Convert to fraction form
    57,069.63/85,629.02 = 30,768.26/x
  3. Step 3: Cross multiply
    57,069.63x = 85,629.02 × 30,768.26
  4. Step 4: Simplify right side
    57,069.63x = 2,634,655,368.92
  5. Step 5: Solve for x
    x = 2,634,655,368.92/57,069.63
  6. Step 6: Final answer
    x = 46,165.63

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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.