Home / 89,831.84-123,973.60-51,603.34

Finding the Fourth Proportional to 89,831.84, 123,973.60 and 51,603.34

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Solution

The fourth proportional to 89,831.84, 123,973.60 and 51,603.34 is: 71,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,831.84 : 123,973.60 = 51,603.34 : x
  2. Step 2: Convert to fraction form
    89,831.84/123,973.60 = 51,603.34/x
  3. Step 3: Cross multiply
    89,831.84x = 123,973.60 × 51,603.34
  4. Step 4: Simplify right side
    89,831.84x = 6,397,451,831.82
  5. Step 5: Solve for x
    x = 6,397,451,831.82/89,831.84
  6. Step 6: Final answer
    x = 71,215.86

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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.