Home / 53,879.76-74,347.53-30,908.39

Finding the Fourth Proportional to 53,879.76, 74,347.53 and 30,908.39

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Solution

The fourth proportional to 53,879.76, 74,347.53 and 30,908.39 is: 42,649.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,879.76 : 74,347.53 = 30,908.39 : x
  2. Step 2: Convert to fraction form
    53,879.76/74,347.53 = 30,908.39/x
  3. Step 3: Cross multiply
    53,879.76x = 74,347.53 × 30,908.39
  4. Step 4: Simplify right side
    53,879.76x = 2,297,962,452.78
  5. Step 5: Solve for x
    x = 2,297,962,452.78/53,879.76
  6. Step 6: Final answer
    x = 42,649.83

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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.