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Finding the Fourth Proportional to 57,758.64, 79,707.24 and 33,885.78

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Solution

The fourth proportional to 57,758.64, 79,707.24 and 33,885.78 is: 46,762.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,758.64 : 79,707.24 = 33,885.78 : x
  2. Step 2: Convert to fraction form
    57,758.64/79,707.24 = 33,885.78/x
  3. Step 3: Cross multiply
    57,758.64x = 79,707.24 × 33,885.78
  4. Step 4: Simplify right side
    57,758.64x = 2,700,941,999.05
  5. Step 5: Solve for x
    x = 2,700,941,999.05/57,758.64
  6. Step 6: Final answer
    x = 46,762.56

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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.