Home / 55,078.52-76,008.60-31,209.84

Finding the Fourth Proportional to 55,078.52, 76,008.60 and 31,209.84

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Solution

The fourth proportional to 55,078.52, 76,008.60 and 31,209.84 is: 43,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,078.52 : 76,008.60 = 31,209.84 : x
  2. Step 2: Convert to fraction form
    55,078.52/76,008.60 = 31,209.84/x
  3. Step 3: Cross multiply
    55,078.52x = 76,008.60 × 31,209.84
  4. Step 4: Simplify right side
    55,078.52x = 2,372,216,244.62
  5. Step 5: Solve for x
    x = 2,372,216,244.62/55,078.52
  6. Step 6: Final answer
    x = 43,069.72

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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.