Home / 85,496.50-128,247.36-29,335.81

Finding the Fourth Proportional to 85,496.50, 128,247.36 and 29,335.81

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Solution

The fourth proportional to 85,496.50, 128,247.36 and 29,335.81 is: 44,004.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,496.50 : 128,247.36 = 29,335.81 : x
  2. Step 2: Convert to fraction form
    85,496.50/128,247.36 = 29,335.81/x
  3. Step 3: Cross multiply
    85,496.50x = 128,247.36 × 29,335.81
  4. Step 4: Simplify right side
    85,496.50x = 3,762,240,185.96
  5. Step 5: Solve for x
    x = 3,762,240,185.96/85,496.50
  6. Step 6: Final answer
    x = 44,004.61

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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.