Home / 88,659.10-133,085.85-55,416.70

Finding the Fourth Proportional to 88,659.10, 133,085.85 and 55,416.70

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Solution

The fourth proportional to 88,659.10, 133,085.85 and 55,416.70 is: 83,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,659.10 : 133,085.85 = 55,416.70 : x
  2. Step 2: Convert to fraction form
    88,659.10/133,085.85 = 55,416.70/x
  3. Step 3: Cross multiply
    88,659.10x = 133,085.85 × 55,416.70
  4. Step 4: Simplify right side
    88,659.10x = 7,375,178,623.70
  5. Step 5: Solve for x
    x = 7,375,178,623.70/88,659.10
  6. Step 6: Final answer
    x = 83,185.81

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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.