Home / 85,532.91-128,287.21-29,372.10

Finding the Fourth Proportional to 85,532.91, 128,287.21 and 29,372.10

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Solution

The fourth proportional to 85,532.91, 128,287.21 and 29,372.10 is: 44,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532.91 : 128,287.21 = 29,372.10 : x
  2. Step 2: Convert to fraction form
    85,532.91/128,287.21 = 29,372.10/x
  3. Step 3: Cross multiply
    85,532.91x = 128,287.21 × 29,372.10
  4. Step 4: Simplify right side
    85,532.91x = 3,768,064,760.84
  5. Step 5: Solve for x
    x = 3,768,064,760.84/85,532.91
  6. Step 6: Final answer
    x = 44,053.98

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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.