Home / 55,739.52-76,919.04-30,585.60

Finding the Fourth Proportional to 55,739.52, 76,919.04 and 30,585.60

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Solution

The fourth proportional to 55,739.52, 76,919.04 and 30,585.60 is: 42,207.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.52 : 76,919.04 = 30,585.60 : x
  2. Step 2: Convert to fraction form
    55,739.52/76,919.04 = 30,585.60/x
  3. Step 3: Cross multiply
    55,739.52x = 76,919.04 × 30,585.60
  4. Step 4: Simplify right side
    55,739.52x = 2,352,614,989.82
  5. Step 5: Solve for x
    x = 2,352,614,989.82/55,739.52
  6. Step 6: Final answer
    x = 42,207.31

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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.