Home / 54,223.02-81,332.64-19,161.36

Finding the Fourth Proportional to 54,223.02, 81,332.64 and 19,161.36

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Solution

The fourth proportional to 54,223.02, 81,332.64 and 19,161.36 is: 28,741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,223.02 : 81,332.64 = 19,161.36 : x
  2. Step 2: Convert to fraction form
    54,223.02/81,332.64 = 19,161.36/x
  3. Step 3: Cross multiply
    54,223.02x = 81,332.64 × 19,161.36
  4. Step 4: Simplify right side
    54,223.02x = 1,558,443,994.79
  5. Step 5: Solve for x
    x = 1,558,443,994.79/54,223.02
  6. Step 6: Final answer
    x = 28,741.37

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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.