Home / 53,278.20-79,917.30-33,643.80

Finding the Fourth Proportional to 53,278.20, 79,917.30 and 33,643.80

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Solution

The fourth proportional to 53,278.20, 79,917.30 and 33,643.80 is: 50,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,278.20 : 79,917.30 = 33,643.80 : x
  2. Step 2: Convert to fraction form
    53,278.20/79,917.30 = 33,643.80/x
  3. Step 3: Cross multiply
    53,278.20x = 79,917.30 × 33,643.80
  4. Step 4: Simplify right side
    53,278.20x = 2,688,721,657.74
  5. Step 5: Solve for x
    x = 2,688,721,657.74/53,278.20
  6. Step 6: Final answer
    x = 50,465.70

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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.