Home / 55,192.14-76,159.86-30,987.54

Finding the Fourth Proportional to 55,192.14, 76,159.86 and 30,987.54

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Solution

The fourth proportional to 55,192.14, 76,159.86 and 30,987.54 is: 42,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,192.14 : 76,159.86 = 30,987.54 : x
  2. Step 2: Convert to fraction form
    55,192.14/76,159.86 = 30,987.54/x
  3. Step 3: Cross multiply
    55,192.14x = 76,159.86 × 30,987.54
  4. Step 4: Simplify right side
    55,192.14x = 2,360,006,708.14
  5. Step 5: Solve for x
    x = 2,360,006,708.14/55,192.14
  6. Step 6: Final answer
    x = 42,759.83

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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.