Home / 55,831.78-77,046.90-30,338.55

Finding the Fourth Proportional to 55,831.78, 77,046.90 and 30,338.55

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Solution

The fourth proportional to 55,831.78, 77,046.90 and 30,338.55 is: 41,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,831.78 : 77,046.90 = 30,338.55 : x
  2. Step 2: Convert to fraction form
    55,831.78/77,046.90 = 30,338.55/x
  3. Step 3: Cross multiply
    55,831.78x = 77,046.90 × 30,338.55
  4. Step 4: Simplify right side
    55,831.78x = 2,337,491,114.23
  5. Step 5: Solve for x
    x = 2,337,491,114.23/55,831.78
  6. Step 6: Final answer
    x = 41,866.68

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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.