Home / 55,831.30-77,046.30-30,680.26

Finding the Fourth Proportional to 55,831.30, 77,046.30 and 30,680.26

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Solution

The fourth proportional to 55,831.30, 77,046.30 and 30,680.26 is: 42,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,831.30 : 77,046.30 = 30,680.26 : x
  2. Step 2: Convert to fraction form
    55,831.30/77,046.30 = 30,680.26/x
  3. Step 3: Cross multiply
    55,831.30x = 77,046.30 × 30,680.26
  4. Step 4: Simplify right side
    55,831.30x = 2,363,800,516.04
  5. Step 5: Solve for x
    x = 2,363,800,516.04/55,831.30
  6. Step 6: Final answer
    x = 42,338.27

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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.