Home / 55,831.06-77,045.34-30,680.56

Finding the Fourth Proportional to 55,831.06, 77,045.34 and 30,680.56

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Solution

The fourth proportional to 55,831.06, 77,045.34 and 30,680.56 is: 42,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,831.06 : 77,045.34 = 30,680.56 : x
  2. Step 2: Convert to fraction form
    55,831.06/77,045.34 = 30,680.56/x
  3. Step 3: Cross multiply
    55,831.06x = 77,045.34 × 30,680.56
  4. Step 4: Simplify right side
    55,831.06x = 2,363,794,176.59
  5. Step 5: Solve for x
    x = 2,363,794,176.59/55,831.06
  6. Step 6: Final answer
    x = 42,338.34

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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.