Home / 53,801.36-80,702.43-18,740.90

Finding the Fourth Proportional to 53,801.36, 80,702.43 and 18,740.90

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Solution

The fourth proportional to 53,801.36, 80,702.43 and 18,740.90 is: 28,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,801.36 : 80,702.43 = 18,740.90 : x
  2. Step 2: Convert to fraction form
    53,801.36/80,702.43 = 18,740.90/x
  3. Step 3: Cross multiply
    53,801.36x = 80,702.43 × 18,740.90
  4. Step 4: Simplify right side
    53,801.36x = 1,512,436,170.39
  5. Step 5: Solve for x
    x = 1,512,436,170.39/53,801.36
  6. Step 6: Final answer
    x = 28,111.49

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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.