Home / 53,172.45-73,378.85-29,298.78

Finding the Fourth Proportional to 53,172.45, 73,378.85 and 29,298.78

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Solution

The fourth proportional to 53,172.45, 73,378.85 and 29,298.78 is: 40,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,172.45 : 73,378.85 = 29,298.78 : x
  2. Step 2: Convert to fraction form
    53,172.45/73,378.85 = 29,298.78/x
  3. Step 3: Cross multiply
    53,172.45x = 73,378.85 × 29,298.78
  4. Step 4: Simplify right side
    53,172.45x = 2,149,910,636.31
  5. Step 5: Solve for x
    x = 2,149,910,636.31/53,172.45
  6. Step 6: Final answer
    x = 40,432.79

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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.