Home / 85,494.13-128,243.81-29,333.46

Finding the Fourth Proportional to 85,494.13, 128,243.81 and 29,333.46

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Solution

The fourth proportional to 85,494.13, 128,243.81 and 29,333.46 is: 44,001.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,494.13 : 128,243.81 = 29,333.46 : x
  2. Step 2: Convert to fraction form
    85,494.13/128,243.81 = 29,333.46/x
  3. Step 3: Cross multiply
    85,494.13x = 128,243.81 × 29,333.46
  4. Step 4: Simplify right side
    85,494.13x = 3,761,835,225.13
  5. Step 5: Solve for x
    x = 3,761,835,225.13/85,494.13
  6. Step 6: Final answer
    x = 44,001.09

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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.