Home / 54,654.21-75,421.26-30,781.08

Finding the Fourth Proportional to 54,654.21, 75,421.26 and 30,781.08

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Solution

The fourth proportional to 54,654.21, 75,421.26 and 30,781.08 is: 42,477.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,654.21 : 75,421.26 = 30,781.08 : x
  2. Step 2: Convert to fraction form
    54,654.21/75,421.26 = 30,781.08/x
  3. Step 3: Cross multiply
    54,654.21x = 75,421.26 × 30,781.08
  4. Step 4: Simplify right side
    54,654.21x = 2,321,547,837.76
  5. Step 5: Solve for x
    x = 2,321,547,837.76/54,654.21
  6. Step 6: Final answer
    x = 42,477.02

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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.