Home / 82,753.40-124,130.10-51,606.20

Finding the Fourth Proportional to 82,753.40, 124,130.10 and 51,606.20

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Solution

The fourth proportional to 82,753.40, 124,130.10 and 51,606.20 is: 77,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,753.40 : 124,130.10 = 51,606.20 : x
  2. Step 2: Convert to fraction form
    82,753.40/124,130.10 = 51,606.20/x
  3. Step 3: Cross multiply
    82,753.40x = 124,130.10 × 51,606.20
  4. Step 4: Simplify right side
    82,753.40x = 6,405,882,766.62
  5. Step 5: Solve for x
    x = 6,405,882,766.62/82,753.40
  6. Step 6: Final answer
    x = 77,409.30

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1.5x scale

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.