Home / 55,685.08-76,843.38-30,534.04

Finding the Fourth Proportional to 55,685.08, 76,843.38 and 30,534.04

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Solution

The fourth proportional to 55,685.08, 76,843.38 and 30,534.04 is: 42,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.08 : 76,843.38 = 30,534.04 : x
  2. Step 2: Convert to fraction form
    55,685.08/76,843.38 = 30,534.04/x
  3. Step 3: Cross multiply
    55,685.08x = 76,843.38 × 30,534.04
  4. Step 4: Simplify right side
    55,685.08x = 2,346,338,838.66
  5. Step 5: Solve for x
    x = 2,346,338,838.66/55,685.08
  6. Step 6: Final answer
    x = 42,135.86

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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.