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Finding the Fourth Proportional to 82,958.40, 124,437.60 and 56,714.40

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Solution

The fourth proportional to 82,958.40, 124,437.60 and 56,714.40 is: 85,071.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,958.40 : 124,437.60 = 56,714.40 : x
  2. Step 2: Convert to fraction form
    82,958.40/124,437.60 = 56,714.40/x
  3. Step 3: Cross multiply
    82,958.40x = 124,437.60 × 56,714.40
  4. Step 4: Simplify right side
    82,958.40x = 7,057,403,821.44
  5. Step 5: Solve for x
    x = 7,057,403,821.44/82,958.40
  6. Step 6: Final answer
    x = 85,071.60

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