Home / 55,228.72-76,215.72-30,078.32

Finding the Fourth Proportional to 55,228.72, 76,215.72 and 30,078.32

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Solution

The fourth proportional to 55,228.72, 76,215.72 and 30,078.32 is: 41,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,228.72 : 76,215.72 = 30,078.32 : x
  2. Step 2: Convert to fraction form
    55,228.72/76,215.72 = 30,078.32/x
  3. Step 3: Cross multiply
    55,228.72x = 76,215.72 × 30,078.32
  4. Step 4: Simplify right side
    55,228.72x = 2,292,440,815.19
  5. Step 5: Solve for x
    x = 2,292,440,815.19/55,228.72
  6. Step 6: Final answer
    x = 41,508.13

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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.