Home / 54,421.07-81,616.14-21,134.03

Finding the Fourth Proportional to 54,421.07, 81,616.14 and 21,134.03

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Solution

The fourth proportional to 54,421.07, 81,616.14 and 21,134.03 is: 31,695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,421.07 : 81,616.14 = 21,134.03 : x
  2. Step 2: Convert to fraction form
    54,421.07/81,616.14 = 21,134.03/x
  3. Step 3: Cross multiply
    54,421.07x = 81,616.14 × 21,134.03
  4. Step 4: Simplify right side
    54,421.07x = 1,724,877,543.16
  5. Step 5: Solve for x
    x = 1,724,877,543.16/54,421.07
  6. Step 6: Final answer
    x = 31,695.03

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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.