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Finding the Fourth Proportional to 82,000.40, 122,903.40 and 34,615.40

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Solution

The fourth proportional to 82,000.40, 122,903.40 and 34,615.40 is: 51,882.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,000.40 : 122,903.40 = 34,615.40 : x
  2. Step 2: Convert to fraction form
    82,000.40/122,903.40 = 34,615.40/x
  3. Step 3: Cross multiply
    82,000.40x = 122,903.40 × 34,615.40
  4. Step 4: Simplify right side
    82,000.40x = 4,254,350,352.36
  5. Step 5: Solve for x
    x = 4,254,350,352.36/82,000.40
  6. Step 6: Final answer
    x = 51,882.07

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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.