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Finding the Fourth Proportional to 53,223.52, 79,834.76 and 20,391.52

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Solution

The fourth proportional to 53,223.52, 79,834.76 and 20,391.52 is: 30,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,223.52 : 79,834.76 = 20,391.52 : x
  2. Step 2: Convert to fraction form
    53,223.52/79,834.76 = 20,391.52/x
  3. Step 3: Cross multiply
    53,223.52x = 79,834.76 × 20,391.52
  4. Step 4: Simplify right side
    53,223.52x = 1,627,952,105.24
  5. Step 5: Solve for x
    x = 1,627,952,105.24/53,223.52
  6. Step 6: Final answer
    x = 30,587.08

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1.5x scale

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.