Home / 55,355.13-76,394.79-45,255.33

Finding the Fourth Proportional to 55,355.13, 76,394.79 and 45,255.33

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Solution

The fourth proportional to 55,355.13, 76,394.79 and 45,255.33 is: 62,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355.13 : 76,394.79 = 45,255.33 : x
  2. Step 2: Convert to fraction form
    55,355.13/76,394.79 = 45,255.33/x
  3. Step 3: Cross multiply
    55,355.13x = 76,394.79 × 45,255.33
  4. Step 4: Simplify right side
    55,355.13x = 3,457,271,431.73
  5. Step 5: Solve for x
    x = 3,457,271,431.73/55,355.13
  6. Step 6: Final answer
    x = 62,456.21

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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.