Home / 92,940.90-139,257.45-53,429.10

Finding the Fourth Proportional to 92,940.90, 139,257.45 and 53,429.10

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Solution

The fourth proportional to 92,940.90, 139,257.45 and 53,429.10 is: 80,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,940.90 : 139,257.45 = 53,429.10 : x
  2. Step 2: Convert to fraction form
    92,940.90/139,257.45 = 53,429.10/x
  3. Step 3: Cross multiply
    92,940.90x = 139,257.45 × 53,429.10
  4. Step 4: Simplify right side
    92,940.90x = 7,440,400,221.80
  5. Step 5: Solve for x
    x = 7,440,400,221.80/92,940.90
  6. Step 6: Final answer
    x = 80,055.18

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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.