Home / 55,720.14-83,579.13-13,600.50

Finding the Fourth Proportional to 55,720.14, 83,579.13 and 13,600.50

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Solution

The fourth proportional to 55,720.14, 83,579.13 and 13,600.50 is: 20,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,720.14 : 83,579.13 = 13,600.50 : x
  2. Step 2: Convert to fraction form
    55,720.14/83,579.13 = 13,600.50/x
  3. Step 3: Cross multiply
    55,720.14x = 83,579.13 × 13,600.50
  4. Step 4: Simplify right side
    55,720.14x = 1,136,717,957.57
  5. Step 5: Solve for x
    x = 1,136,717,957.57/55,720.14
  6. Step 6: Final answer
    x = 20,400.49

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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.