Home / 87,297.77-130,688.31-53,910.50

Finding the Fourth Proportional to 87,297.77, 130,688.31 and 53,910.50

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Solution

The fourth proportional to 87,297.77, 130,688.31 and 53,910.50 is: 80,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,297.77 : 130,688.31 = 53,910.50 : x
  2. Step 2: Convert to fraction form
    87,297.77/130,688.31 = 53,910.50/x
  3. Step 3: Cross multiply
    87,297.77x = 130,688.31 × 53,910.50
  4. Step 4: Simplify right side
    87,297.77x = 7,045,472,136.26
  5. Step 5: Solve for x
    x = 7,045,472,136.26/87,297.77
  6. Step 6: Final answer
    x = 80,706.21

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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.