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Finding the Fourth Proportional to 67,856.80, 101,785.20 and 46,861.60

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Solution

The fourth proportional to 67,856.80, 101,785.20 and 46,861.60 is: 70,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,856.80 : 101,785.20 = 46,861.60 : x
  2. Step 2: Convert to fraction form
    67,856.80/101,785.20 = 46,861.60/x
  3. Step 3: Cross multiply
    67,856.80x = 101,785.20 × 46,861.60
  4. Step 4: Simplify right side
    67,856.80x = 4,769,817,328.32
  5. Step 5: Solve for x
    x = 4,769,817,328.32/67,856.80
  6. Step 6: Final answer
    x = 70,292.40

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