Home / 55,730.48-76,910.28-30,580.88

Finding the Fourth Proportional to 55,730.48, 76,910.28 and 30,580.88

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Solution

The fourth proportional to 55,730.48, 76,910.28 and 30,580.88 is: 42,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.48 : 76,910.28 = 30,580.88 : x
  2. Step 2: Convert to fraction form
    55,730.48/76,910.28 = 30,580.88/x
  3. Step 3: Cross multiply
    55,730.48x = 76,910.28 × 30,580.88
  4. Step 4: Simplify right side
    55,730.48x = 2,351,984,043.45
  5. Step 5: Solve for x
    x = 2,351,984,043.45/55,730.48
  6. Step 6: Final answer
    x = 42,202.83

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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.