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Finding the Fourth Proportional to 85,206.72, 127,866.96 and 29,802.72

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Solution

The fourth proportional to 85,206.72, 127,866.96 and 29,802.72 is: 44,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,206.72 : 127,866.96 = 29,802.72 : x
  2. Step 2: Convert to fraction form
    85,206.72/127,866.96 = 29,802.72/x
  3. Step 3: Cross multiply
    85,206.72x = 127,866.96 × 29,802.72
  4. Step 4: Simplify right side
    85,206.72x = 3,810,783,206.13
  5. Step 5: Solve for x
    x = 3,810,783,206.13/85,206.72
  6. Step 6: Final answer
    x = 44,723.97

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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.