Home / 55,487.89-83,214.56-18,543.25

Finding the Fourth Proportional to 55,487.89, 83,214.56 and 18,543.25

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Solution

The fourth proportional to 55,487.89, 83,214.56 and 18,543.25 is: 27,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,487.89 : 83,214.56 = 18,543.25 : x
  2. Step 2: Convert to fraction form
    55,487.89/83,214.56 = 18,543.25/x
  3. Step 3: Cross multiply
    55,487.89x = 83,214.56 × 18,543.25
  4. Step 4: Simplify right side
    55,487.89x = 1,543,068,297.00
  5. Step 5: Solve for x
    x = 1,543,068,297.00/55,487.89
  6. Step 6: Final answer
    x = 27,809.10

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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.