Home / 55,784.55-76,980.38-30,289.92

Finding the Fourth Proportional to 55,784.55, 76,980.38 and 30,289.92

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Solution

The fourth proportional to 55,784.55, 76,980.38 and 30,289.92 is: 41,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,784.55 : 76,980.38 = 30,289.92 : x
  2. Step 2: Convert to fraction form
    55,784.55/76,980.38 = 30,289.92/x
  3. Step 3: Cross multiply
    55,784.55x = 76,980.38 × 30,289.92
  4. Step 4: Simplify right side
    55,784.55x = 2,331,729,551.77
  5. Step 5: Solve for x
    x = 2,331,729,551.77/55,784.55
  6. Step 6: Final answer
    x = 41,798.84

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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.