Home / 54,139.64-81,218.70-16,699.01

Finding the Fourth Proportional to 54,139.64, 81,218.70 and 16,699.01

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Solution

The fourth proportional to 54,139.64, 81,218.70 and 16,699.01 is: 25,051.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139.64 : 81,218.70 = 16,699.01 : x
  2. Step 2: Convert to fraction form
    54,139.64/81,218.70 = 16,699.01/x
  3. Step 3: Cross multiply
    54,139.64x = 81,218.70 × 16,699.01
  4. Step 4: Simplify right side
    54,139.64x = 1,356,271,477.39
  5. Step 5: Solve for x
    x = 1,356,271,477.39/54,139.64
  6. Step 6: Final answer
    x = 25,051.36

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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.