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Finding the Fourth Proportional to 86,485.76, 119,350.14 and 48,759.74

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Solution

The fourth proportional to 86,485.76, 119,350.14 and 48,759.74 is: 67,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.76 : 119,350.14 = 48,759.74 : x
  2. Step 2: Convert to fraction form
    86,485.76/119,350.14 = 48,759.74/x
  3. Step 3: Cross multiply
    86,485.76x = 119,350.14 × 48,759.74
  4. Step 4: Simplify right side
    86,485.76x = 5,819,481,198.61
  5. Step 5: Solve for x
    x = 5,819,481,198.61/86,485.76
  6. Step 6: Final answer
    x = 67,288.32

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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.