Home / 48,128.16-72,173.12-18,529.60

Finding the Fourth Proportional to 48,128.16, 72,173.12 and 18,529.60

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Solution

The fourth proportional to 48,128.16, 72,173.12 and 18,529.60 is: 27,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,128.16 : 72,173.12 = 18,529.60 : x
  2. Step 2: Convert to fraction form
    48,128.16/72,173.12 = 18,529.60/x
  3. Step 3: Cross multiply
    48,128.16x = 72,173.12 × 18,529.60
  4. Step 4: Simplify right side
    48,128.16x = 1,337,339,044.35
  5. Step 5: Solve for x
    x = 1,337,339,044.35/48,128.16
  6. Step 6: Final answer
    x = 27,787.04

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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.