Home / 55,619.40-83,437.20-18,181.20

Finding the Fourth Proportional to 55,619.40, 83,437.20 and 18,181.20

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Solution

The fourth proportional to 55,619.40, 83,437.20 and 18,181.20 is: 27,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,619.40 : 83,437.20 = 18,181.20 : x
  2. Step 2: Convert to fraction form
    55,619.40/83,437.20 = 18,181.20/x
  3. Step 3: Cross multiply
    55,619.40x = 83,437.20 × 18,181.20
  4. Step 4: Simplify right side
    55,619.40x = 1,516,988,420.64
  5. Step 5: Solve for x
    x = 1,516,988,420.64/55,619.40
  6. Step 6: Final answer
    x = 27,274.45

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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.