Home / 57,489.12-79,267.11-39,348.58

Finding the Fourth Proportional to 57,489.12, 79,267.11 and 39,348.58

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Solution

The fourth proportional to 57,489.12, 79,267.11 and 39,348.58 is: 54,254.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.12 : 79,267.11 = 39,348.58 : x
  2. Step 2: Convert to fraction form
    57,489.12/79,267.11 = 39,348.58/x
  3. Step 3: Cross multiply
    57,489.12x = 79,267.11 × 39,348.58
  4. Step 4: Simplify right side
    57,489.12x = 3,119,048,299.58
  5. Step 5: Solve for x
    x = 3,119,048,299.58/57,489.12
  6. Step 6: Final answer
    x = 54,254.59

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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.