Home / 82,106.50-113,247.14-62,769.12

Finding the Fourth Proportional to 82,106.50, 113,247.14 and 62,769.12

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Solution

The fourth proportional to 82,106.50, 113,247.14 and 62,769.12 is: 86,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,106.50 : 113,247.14 = 62,769.12 : x
  2. Step 2: Convert to fraction form
    82,106.50/113,247.14 = 62,769.12/x
  3. Step 3: Cross multiply
    82,106.50x = 113,247.14 × 62,769.12
  4. Step 4: Simplify right side
    82,106.50x = 7,108,423,320.32
  5. Step 5: Solve for x
    x = 7,108,423,320.32/82,106.50
  6. Step 6: Final answer
    x = 86,575.65

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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.