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Finding the Fourth Proportional to 98,988.35, 136,611.16 and 56,545.97

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Solution

The fourth proportional to 98,988.35, 136,611.16 and 56,545.97 is: 78,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,988.35 : 136,611.16 = 56,545.97 : x
  2. Step 2: Convert to fraction form
    98,988.35/136,611.16 = 56,545.97/x
  3. Step 3: Cross multiply
    98,988.35x = 136,611.16 × 56,545.97
  4. Step 4: Simplify right side
    98,988.35x = 7,724,809,730.60
  5. Step 5: Solve for x
    x = 7,724,809,730.60/98,988.35
  6. Step 6: Final answer
    x = 78,037.57

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