Home / 83,816.64-115,666.34-45,576.21

Finding the Fourth Proportional to 83,816.64, 115,666.34 and 45,576.21

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Solution

The fourth proportional to 83,816.64, 115,666.34 and 45,576.21 is: 62,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,816.64 : 115,666.34 = 45,576.21 : x
  2. Step 2: Convert to fraction form
    83,816.64/115,666.34 = 45,576.21/x
  3. Step 3: Cross multiply
    83,816.64x = 115,666.34 × 45,576.21
  4. Step 4: Simplify right side
    83,816.64x = 5,271,633,949.46
  5. Step 5: Solve for x
    x = 5,271,633,949.46/83,816.64
  6. Step 6: Final answer
    x = 62,894.83

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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.