Home / 54,655.14-81,985.67-17,218.16

Finding the Fourth Proportional to 54,655.14, 81,985.67 and 17,218.16

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Solution

The fourth proportional to 54,655.14, 81,985.67 and 17,218.16 is: 25,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,655.14 : 81,985.67 = 17,218.16 : x
  2. Step 2: Convert to fraction form
    54,655.14/81,985.67 = 17,218.16/x
  3. Step 3: Cross multiply
    54,655.14x = 81,985.67 × 17,218.16
  4. Step 4: Simplify right side
    54,655.14x = 1,411,642,383.77
  5. Step 5: Solve for x
    x = 1,411,642,383.77/54,655.14
  6. Step 6: Final answer
    x = 25,828.17

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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.