Home / 86,845.72-119,845.02-48,605.80

Finding the Fourth Proportional to 86,845.72, 119,845.02 and 48,605.80

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Solution

The fourth proportional to 86,845.72, 119,845.02 and 48,605.80 is: 67,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,845.72 : 119,845.02 = 48,605.80 : x
  2. Step 2: Convert to fraction form
    86,845.72/119,845.02 = 48,605.80/x
  3. Step 3: Cross multiply
    86,845.72x = 119,845.02 × 48,605.80
  4. Step 4: Simplify right side
    86,845.72x = 5,825,163,073.12
  5. Step 5: Solve for x
    x = 5,825,163,073.12/86,845.72
  6. Step 6: Final answer
    x = 67,074.84

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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.