Home / 87,125.12-120,231.04-48,885.36

Finding the Fourth Proportional to 87,125.12, 120,231.04 and 48,885.36

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Solution

The fourth proportional to 87,125.12, 120,231.04 and 48,885.36 is: 67,460.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,125.12 : 120,231.04 = 48,885.36 : x
  2. Step 2: Convert to fraction form
    87,125.12/120,231.04 = 48,885.36/x
  3. Step 3: Cross multiply
    87,125.12x = 120,231.04 × 48,885.36
  4. Step 4: Simplify right side
    87,125.12x = 5,877,537,673.57
  5. Step 5: Solve for x
    x = 5,877,537,673.57/87,125.12
  6. Step 6: Final answer
    x = 67,460.88

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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.