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Finding the Fourth Proportional to 82,000.40, 122,741.40 and 58,672.40

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Solution

The fourth proportional to 82,000.40, 122,741.40 and 58,672.40 is: 87,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,000.40 : 122,741.40 = 58,672.40 : x
  2. Step 2: Convert to fraction form
    82,000.40/122,741.40 = 58,672.40/x
  3. Step 3: Cross multiply
    82,000.40x = 122,741.40 × 58,672.40
  4. Step 4: Simplify right side
    82,000.40x = 7,201,532,517.36
  5. Step 5: Solve for x
    x = 7,201,532,517.36/82,000.40
  6. Step 6: Final answer
    x = 87,823.14

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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.