Home / 91,270.60-136,918.87-28,095.98

Finding the Fourth Proportional to 91,270.60, 136,918.87 and 28,095.98

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Solution

The fourth proportional to 91,270.60, 136,918.87 and 28,095.98 is: 42,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,270.60 : 136,918.87 = 28,095.98 : x
  2. Step 2: Convert to fraction form
    91,270.60/136,918.87 = 28,095.98/x
  3. Step 3: Cross multiply
    91,270.60x = 136,918.87 × 28,095.98
  4. Step 4: Simplify right side
    91,270.60x = 3,846,869,078.31
  5. Step 5: Solve for x
    x = 3,846,869,078.31/91,270.60
  6. Step 6: Final answer
    x = 42,147.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.