Home / 74,679.21-102,988.08-54,504.14

Finding the Fourth Proportional to 74,679.21, 102,988.08 and 54,504.14

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Solution

The fourth proportional to 74,679.21, 102,988.08 and 54,504.14 is: 75,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.21 : 102,988.08 = 54,504.14 : x
  2. Step 2: Convert to fraction form
    74,679.21/102,988.08 = 54,504.14/x
  3. Step 3: Cross multiply
    74,679.21x = 102,988.08 × 54,504.14
  4. Step 4: Simplify right side
    74,679.21x = 5,613,276,215.71
  5. Step 5: Solve for x
    x = 5,613,276,215.71/74,679.21
  6. Step 6: Final answer
    x = 75,165.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.