Home / 55,078.87-76,008.56-31,205.48

Finding the Fourth Proportional to 55,078.87, 76,008.56 and 31,205.48

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Solution

The fourth proportional to 55,078.87, 76,008.56 and 31,205.48 is: 43,063.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,078.87 : 76,008.56 = 31,205.48 : x
  2. Step 2: Convert to fraction form
    55,078.87/76,008.56 = 31,205.48/x
  3. Step 3: Cross multiply
    55,078.87x = 76,008.56 × 31,205.48
  4. Step 4: Simplify right side
    55,078.87x = 2,371,883,598.91
  5. Step 5: Solve for x
    x = 2,371,883,598.91/55,078.87
  6. Step 6: Final answer
    x = 43,063.41

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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.