Home / 82,533.60-123,842.61-39,305.45

Finding the Fourth Proportional to 82,533.60, 123,842.61 and 39,305.45

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Solution

The fourth proportional to 82,533.60, 123,842.61 and 39,305.45 is: 58,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,533.60 : 123,842.61 = 39,305.45 : x
  2. Step 2: Convert to fraction form
    82,533.60/123,842.61 = 39,305.45/x
  3. Step 3: Cross multiply
    82,533.60x = 123,842.61 × 39,305.45
  4. Step 4: Simplify right side
    82,533.60x = 4,867,689,515.22
  5. Step 5: Solve for x
    x = 4,867,689,515.22/82,533.60
  6. Step 6: Final answer
    x = 58,978.28

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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.