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Finding the Fourth Proportional to 58,446.40, 87,712.80 and 38,718.40

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Solution

The fourth proportional to 58,446.40, 87,712.80 and 38,718.40 is: 58,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,446.40 : 87,712.80 = 38,718.40 : x
  2. Step 2: Convert to fraction form
    58,446.40/87,712.80 = 38,718.40/x
  3. Step 3: Cross multiply
    58,446.40x = 87,712.80 × 38,718.40
  4. Step 4: Simplify right side
    58,446.40x = 3,396,099,275.52
  5. Step 5: Solve for x
    x = 3,396,099,275.52/58,446.40
  6. Step 6: Final answer
    x = 58,106.22

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