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Finding the Fourth Proportional to 53,015.58, 73,161.58 and 29,142.40

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Solution

The fourth proportional to 53,015.58, 73,161.58 and 29,142.40 is: 40,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,015.58 : 73,161.58 = 29,142.40 : x
  2. Step 2: Convert to fraction form
    53,015.58/73,161.58 = 29,142.40/x
  3. Step 3: Cross multiply
    53,015.58x = 73,161.58 × 29,142.40
  4. Step 4: Simplify right side
    53,015.58x = 2,132,103,965.05
  5. Step 5: Solve for x
    x = 2,132,103,965.05/53,015.58
  6. Step 6: Final answer
    x = 40,216.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.