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Finding the Fourth Proportional to 82,353.30, 123,529.95 and 40,881.30

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Solution

The fourth proportional to 82,353.30, 123,529.95 and 40,881.30 is: 61,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,353.30 : 123,529.95 = 40,881.30 : x
  2. Step 2: Convert to fraction form
    82,353.30/123,529.95 = 40,881.30/x
  3. Step 3: Cross multiply
    82,353.30x = 123,529.95 × 40,881.30
  4. Step 4: Simplify right side
    82,353.30x = 5,050,064,944.94
  5. Step 5: Solve for x
    x = 5,050,064,944.94/82,353.30
  6. Step 6: Final answer
    x = 61,321.95

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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.