Home / 85,438.18-117,868.53-57,152.98

Finding the Fourth Proportional to 85,438.18, 117,868.53 and 57,152.98

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Solution

The fourth proportional to 85,438.18, 117,868.53 and 57,152.98 is: 78,846.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,438.18 : 117,868.53 = 57,152.98 : x
  2. Step 2: Convert to fraction form
    85,438.18/117,868.53 = 57,152.98/x
  3. Step 3: Cross multiply
    85,438.18x = 117,868.53 × 57,152.98
  4. Step 4: Simplify right side
    85,438.18x = 6,736,537,737.72
  5. Step 5: Solve for x
    x = 6,736,537,737.72/85,438.18
  6. Step 6: Final answer
    x = 78,846.92

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