Home / 85,171.28-127,709.89-39,529.22

Finding the Fourth Proportional to 85,171.28, 127,709.89 and 39,529.22

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Solution

The fourth proportional to 85,171.28, 127,709.89 and 39,529.22 is: 59,272.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,171.28 : 127,709.89 = 39,529.22 : x
  2. Step 2: Convert to fraction form
    85,171.28/127,709.89 = 39,529.22/x
  3. Step 3: Cross multiply
    85,171.28x = 127,709.89 × 39,529.22
  4. Step 4: Simplify right side
    85,171.28x = 5,048,271,600.61
  5. Step 5: Solve for x
    x = 5,048,271,600.61/85,171.28
  6. Step 6: Final answer
    x = 59,272.00

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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.