Home / 54,417.63-81,636.90-18,877.59

Finding the Fourth Proportional to 54,417.63, 81,636.90 and 18,877.59

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Solution

The fourth proportional to 54,417.63, 81,636.90 and 18,877.59 is: 28,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,417.63 : 81,636.90 = 18,877.59 : x
  2. Step 2: Convert to fraction form
    54,417.63/81,636.90 = 18,877.59/x
  3. Step 3: Cross multiply
    54,417.63x = 81,636.90 × 18,877.59
  4. Step 4: Simplify right side
    54,417.63x = 1,541,107,927.07
  5. Step 5: Solve for x
    x = 1,541,107,927.07/54,417.63
  6. Step 6: Final answer
    x = 28,320.01

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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.