Home / 53,180.45-79,784.51-19,903.13

Finding the Fourth Proportional to 53,180.45, 79,784.51 and 19,903.13

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Solution

The fourth proportional to 53,180.45, 79,784.51 and 19,903.13 is: 29,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,180.45 : 79,784.51 = 19,903.13 : x
  2. Step 2: Convert to fraction form
    53,180.45/79,784.51 = 19,903.13/x
  3. Step 3: Cross multiply
    53,180.45x = 79,784.51 × 19,903.13
  4. Step 4: Simplify right side
    53,180.45x = 1,587,960,976.08
  5. Step 5: Solve for x
    x = 1,587,960,976.08/53,180.45
  6. Step 6: Final answer
    x = 29,859.87

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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.