Home / 55,180.25-76,143.47-30,975.66

Finding the Fourth Proportional to 55,180.25, 76,143.47 and 30,975.66

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Solution

The fourth proportional to 55,180.25, 76,143.47 and 30,975.66 is: 42,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,180.25 : 76,143.47 = 30,975.66 : x
  2. Step 2: Convert to fraction form
    55,180.25/76,143.47 = 30,975.66/x
  3. Step 3: Cross multiply
    55,180.25x = 76,143.47 × 30,975.66
  4. Step 4: Simplify right side
    55,180.25x = 2,358,594,083.06
  5. Step 5: Solve for x
    x = 2,358,594,083.06/55,180.25
  6. Step 6: Final answer
    x = 42,743.45

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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.