Home / 51,402.60-77,090.04-18,118.32

Finding the Fourth Proportional to 51,402.60, 77,090.04 and 18,118.32

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Solution

The fourth proportional to 51,402.60, 77,090.04 and 18,118.32 is: 27,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,402.60 : 77,090.04 = 18,118.32 : x
  2. Step 2: Convert to fraction form
    51,402.60/77,090.04 = 18,118.32/x
  3. Step 3: Cross multiply
    51,402.60x = 77,090.04 × 18,118.32
  4. Step 4: Simplify right side
    51,402.60x = 1,396,742,013.53
  5. Step 5: Solve for x
    x = 1,396,742,013.53/51,402.60
  6. Step 6: Final answer
    x = 27,172.59

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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.