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Finding the Fourth Proportional to 62,289.80, 93,434.70 and 57,478.40

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Solution

The fourth proportional to 62,289.80, 93,434.70 and 57,478.40 is: 86,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,289.80 : 93,434.70 = 57,478.40 : x
  2. Step 2: Convert to fraction form
    62,289.80/93,434.70 = 57,478.40/x
  3. Step 3: Cross multiply
    62,289.80x = 93,434.70 × 57,478.40
  4. Step 4: Simplify right side
    62,289.80x = 5,370,477,060.48
  5. Step 5: Solve for x
    x = 5,370,477,060.48/62,289.80
  6. Step 6: Final answer
    x = 86,217.60

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