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Finding the Fourth Proportional to 82,776.60, 124,164.90 and 27,372.60

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Solution

The fourth proportional to 82,776.60, 124,164.90 and 27,372.60 is: 41,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,776.60 : 124,164.90 = 27,372.60 : x
  2. Step 2: Convert to fraction form
    82,776.60/124,164.90 = 27,372.60/x
  3. Step 3: Cross multiply
    82,776.60x = 124,164.90 × 27,372.60
  4. Step 4: Simplify right side
    82,776.60x = 3,398,716,141.74
  5. Step 5: Solve for x
    x = 3,398,716,141.74/82,776.60
  6. Step 6: Final answer
    x = 41,058.90

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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.