Home / 81,114.57-111,993.45-52,503.48

Finding the Fourth Proportional to 81,114.57, 111,993.45 and 52,503.48

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Solution

The fourth proportional to 81,114.57, 111,993.45 and 52,503.48 is: 72,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,114.57 : 111,993.45 = 52,503.48 : x
  2. Step 2: Convert to fraction form
    81,114.57/111,993.45 = 52,503.48/x
  3. Step 3: Cross multiply
    81,114.57x = 111,993.45 × 52,503.48
  4. Step 4: Simplify right side
    81,114.57x = 5,880,045,862.21
  5. Step 5: Solve for x
    x = 5,880,045,862.21/81,114.57
  6. Step 6: Final answer
    x = 72,490.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.