Home / 55,685.25-76,845.65-30,535.29

Finding the Fourth Proportional to 55,685.25, 76,845.65 and 30,535.29

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Solution

The fourth proportional to 55,685.25, 76,845.65 and 30,535.29 is: 42,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.25 : 76,845.65 = 30,535.29 : x
  2. Step 2: Convert to fraction form
    55,685.25/76,845.65 = 30,535.29/x
  3. Step 3: Cross multiply
    55,685.25x = 76,845.65 × 30,535.29
  4. Step 4: Simplify right side
    55,685.25x = 2,346,504,055.31
  5. Step 5: Solve for x
    x = 2,346,504,055.31/55,685.25
  6. Step 6: Final answer
    x = 42,138.70

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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.