Home / 48,639.48-72,962.07-13,579.05

Finding the Fourth Proportional to 48,639.48, 72,962.07 and 13,579.05

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Solution

The fourth proportional to 48,639.48, 72,962.07 and 13,579.05 is: 20,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,639.48 : 72,962.07 = 13,579.05 : x
  2. Step 2: Convert to fraction form
    48,639.48/72,962.07 = 13,579.05/x
  3. Step 3: Cross multiply
    48,639.48x = 72,962.07 × 13,579.05
  4. Step 4: Simplify right side
    48,639.48x = 990,755,596.63
  5. Step 5: Solve for x
    x = 990,755,596.63/48,639.48
  6. Step 6: Final answer
    x = 20,369.37

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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.