Home / 36,400.79-54,344.82-31,137.72

Finding the Fourth Proportional to 36,400.79, 54,344.82 and 31,137.72

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Solution

The fourth proportional to 36,400.79, 54,344.82 and 31,137.72 is: 46,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,400.79 : 54,344.82 = 31,137.72 : x
  2. Step 2: Convert to fraction form
    36,400.79/54,344.82 = 31,137.72/x
  3. Step 3: Cross multiply
    36,400.79x = 54,344.82 × 31,137.72
  4. Step 4: Simplify right side
    36,400.79x = 1,692,173,701.58
  5. Step 5: Solve for x
    x = 1,692,173,701.58/36,400.79
  6. Step 6: Final answer
    x = 46,487.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.