Home / 55,655.03-83,490.32-18,218.05

Finding the Fourth Proportional to 55,655.03, 83,490.32 and 18,218.05

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Solution

The fourth proportional to 55,655.03, 83,490.32 and 18,218.05 is: 27,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655.03 : 83,490.32 = 18,218.05 : x
  2. Step 2: Convert to fraction form
    55,655.03/83,490.32 = 18,218.05/x
  3. Step 3: Cross multiply
    55,655.03x = 83,490.32 × 18,218.05
  4. Step 4: Simplify right side
    55,655.03x = 1,521,030,661.10
  5. Step 5: Solve for x
    x = 1,521,030,661.10/55,655.03
  6. Step 6: Final answer
    x = 27,329.62

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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.