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Finding the Fourth Proportional to 74,957.80, 112,436.70 and 70,583.80

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Solution

The fourth proportional to 74,957.80, 112,436.70 and 70,583.80 is: 105,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,957.80 : 112,436.70 = 70,583.80 : x
  2. Step 2: Convert to fraction form
    74,957.80/112,436.70 = 70,583.80/x
  3. Step 3: Cross multiply
    74,957.80x = 112,436.70 × 70,583.80
  4. Step 4: Simplify right side
    74,957.80x = 7,936,209,545.46
  5. Step 5: Solve for x
    x = 7,936,209,545.46/74,957.80
  6. Step 6: Final answer
    x = 105,875.70

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