Home / 55,775.43-76,970.19-30,281.79

Finding the Fourth Proportional to 55,775.43, 76,970.19 and 30,281.79

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Solution

The fourth proportional to 55,775.43, 76,970.19 and 30,281.79 is: 41,788.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,775.43 : 76,970.19 = 30,281.79 : x
  2. Step 2: Convert to fraction form
    55,775.43/76,970.19 = 30,281.79/x
  3. Step 3: Cross multiply
    55,775.43x = 76,970.19 × 30,281.79
  4. Step 4: Simplify right side
    55,775.43x = 2,330,795,129.84
  5. Step 5: Solve for x
    x = 2,330,795,129.84/55,775.43
  6. Step 6: Final answer
    x = 41,788.92

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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.