Home / 83,405.57-115,091.01-47,588.63

Finding the Fourth Proportional to 83,405.57, 115,091.01 and 47,588.63

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Solution

The fourth proportional to 83,405.57, 115,091.01 and 47,588.63 is: 65,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,405.57 : 115,091.01 = 47,588.63 : x
  2. Step 2: Convert to fraction form
    83,405.57/115,091.01 = 47,588.63/x
  3. Step 3: Cross multiply
    83,405.57x = 115,091.01 × 47,588.63
  4. Step 4: Simplify right side
    83,405.57x = 5,477,022,915.76
  5. Step 5: Solve for x
    x = 5,477,022,915.76/83,405.57
  6. Step 6: Final answer
    x = 65,667.36

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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.