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Finding the Fourth Proportional to 82,984.40, 124,476.60 and 27,580.40

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Solution

The fourth proportional to 82,984.40, 124,476.60 and 27,580.40 is: 41,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,984.40 : 124,476.60 = 27,580.40 : x
  2. Step 2: Convert to fraction form
    82,984.40/124,476.60 = 27,580.40/x
  3. Step 3: Cross multiply
    82,984.40x = 124,476.60 × 27,580.40
  4. Step 4: Simplify right side
    82,984.40x = 3,433,114,418.64
  5. Step 5: Solve for x
    x = 3,433,114,418.64/82,984.40
  6. Step 6: Final answer
    x = 41,370.60

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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.